97790000 has 200 divisors, whose sum is σ = 297504768. Its totient is φ = 30240000.

The previous prime is 97789987. The next prime is 97790003. The reversal of 97790000 is 9779.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97790003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 769937 + ... + 770063.

Almost surely, 2^97790000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148752384).

97790000 is an abundant number, since it is smaller than the sum of its proper divisors (199714768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97790000 is a wasteful number, since it uses less digits than its factorization.

97790000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 97790000 is about 9888.8826466897. The cubic root of 97790000 is about 460.7140768211.

Adding to 97790000 its reverse (9779), we get a palindrome (97799779).

Multiplying 97790000 by its reverse (9779), we get a square (956288410000 = 977900²).

97790000 divided by its reverse (9779) gives a 4-th power (10000 = 10⁴).

It can be divided in two parts, 97 and 790000, that added together give a palindrome (790097).

The spelling of 97790000 in words is "ninety-seven million, seven hundred ninety thousand".