34520397 has 16 divisors (see below), whose sum is σ = 48576000. Its totient is φ = 21745584.

The previous prime is 34520383. The next prime is 34520399. The reversal of 34520397 is 79302543.

It is a happy number.

It is not a de Polignac number, because 34520397 - 2⁶ = 34520333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34520399) 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, 37104 + ... + 38022.

It is an arithmetic number, because the mean of its divisors is an integer number (3036000).

Almost surely, 2^34520397 is an apocalyptic number.

It is an amenable number.

34520397 is a deficient number, since it is larger than the sum of its proper divisors (14055603).

34520397 is a wasteful number, since it uses less digits than its factorization.

34520397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 34520397 is about 5875.4061136231. The cubic root of 34520397 is about 325.6056462034.

The spelling of 34520397 in words is "thirty-four million, five hundred twenty thousand, three hundred ninety-seven".