34780749 has 8 divisors (see below), whose sum is σ = 46577760. Its totient is φ = 23085456.

The previous prime is 34780747. The next prime is 34780769. The reversal of 34780749 is 94708743.

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

It is not a de Polignac number, because 34780749 - 2¹ = 34780747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34780749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34780747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24627 + ... + 26000.

It is an arithmetic number, because the mean of its divisors is an integer number (5822220).

Almost surely, 2^34780749 is an apocalyptic number.

It is an amenable number.

34780749 is a deficient number, since it is larger than the sum of its proper divisors (11797011).

34780749 is a wasteful number, since it uses less digits than its factorization.

34780749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50859.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 34780749 is about 5897.5205807186. The cubic root of 34780749 is about 326.4221668763.

The spelling of 34780749 in words is "thirty-four million, seven hundred eighty thousand, seven hundred forty-nine".