77950198 has 8 divisors (see below), whose sum is σ = 123079320. Its totient is φ = 36923760.

The previous prime is 77950193. The next prime is 77950199. The reversal of 77950198 is 89105977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77950193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025623 + ... + 1025698.

It is an arithmetic number, because the mean of its divisors is an integer number (15384915).

Almost surely, 2^77950198 is an apocalyptic number.

77950198 is a deficient number, since it is larger than the sum of its proper divisors (45129122).

77950198 is a wasteful number, since it uses less digits than its factorization.

77950198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051342.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 77950198 is about 8828.9409330904. The cubic root of 77950198 is about 427.1749142164.

The spelling of 77950198 in words is "seventy-seven million, nine hundred fifty thousand, one hundred ninety-eight".