34520715 has 16 divisors (see below), whose sum is σ = 61370400. Its totient is φ = 18410976.

The previous prime is 34520713. The next prime is 34520719. The reversal of 34520715 is 51702543.

It is a happy number.

It is not a de Polignac number, because 34520715 - 2¹ = 34520713 is a prime.

It is a super-2 number, since 2×34520715² = 2383359528222450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (34520713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127720 + ... + 127989.

It is an arithmetic number, because the mean of its divisors is an integer number (3835650).

Almost surely, 2^34520715 is an apocalyptic number.

34520715 is a deficient number, since it is larger than the sum of its proper divisors (26849685).

34520715 is a wasteful number, since it uses less digits than its factorization.

34520715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255723 (or 255717 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 34520715 is about 5875.4331755199. The cubic root of 34520715 is about 325.6066460208.

The spelling of 34520715 in words is "thirty-four million, five hundred twenty thousand, seven hundred fifteen".