34520731 has 8 divisors (see below), whose sum is σ = 39488000. Its totient is φ = 29562408.

The previous prime is 34520719. The next prime is 34520743. The reversal of 34520731 is 13702543.

It is an interprime number because it is at equal distance from previous prime (34520719) and next prime (34520743).

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

It is a cyclic number.

It is not a de Polignac number, because 34520731 - 2⁵ = 34520699 is a prime.

It is a super-3 number, since 3×34520731³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34520696 and 34520705.

It is not an unprimeable number, because it can be changed into a prime (34520771) 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, 12760 + ... + 15226.

It is an arithmetic number, because the mean of its divisors is an integer number (4936000).

Almost surely, 2^34520731 is an apocalyptic number.

34520731 is a deficient number, since it is larger than the sum of its proper divisors (4967269).

34520731 is a wasteful number, since it uses less digits than its factorization.

34520731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 34520731 is about 5875.4345371215. The cubic root of 34520731 is about 325.6066963259.

The spelling of 34520731 in words is "thirty-four million, five hundred twenty thousand, seven hundred thirty-one".