34723813 has 12 divisors (see below), whose sum is σ = 37463904. Its totient is φ = 32122200.

The previous prime is 34723807. The next prime is 34723831. The reversal of 34723813 is 31832743.

It is not a de Polignac number, because 34723813 - 2⁵ = 34723781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34723853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21318 + ... + 22888.

It is an arithmetic number, because the mean of its divisors is an integer number (3121992).

Almost surely, 2^34723813 is an apocalyptic number.

It is an amenable number.

34723813 is a deficient number, since it is larger than the sum of its proper divisors (2740091).

34723813 is a wasteful number, since it uses less digits than its factorization.

34723813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1625 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 34723813 is about 5892.6914903124. The cubic root of 34723813 is about 326.2439521689.

The spelling of 34723813 in words is "thirty-four million, seven hundred twenty-three thousand, eight hundred thirteen".