34390863 has 24 divisors (see below), whose sum is σ = 53809392. Its totient is φ = 21040128.

The previous prime is 34390859. The next prime is 34390879. The reversal of 34390863 is 36809343.

It is not a de Polignac number, because 34390863 - 2² = 34390859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21820 + ... + 23342.

It is an arithmetic number, because the mean of its divisors is an integer number (2242058).

Almost surely, 2^34390863 is an apocalyptic number.

34390863 is a deficient number, since it is larger than the sum of its proper divisors (19418529).

34390863 is a wasteful number, since it uses less digits than its factorization.

34390863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 34390863 is about 5864.3723449317. The cubic root of 34390863 is about 325.1978692507.

It can be divided in two parts, 34390 and 863, that added together give a palindrome (35253).

The spelling of 34390863 in words is "thirty-four million, three hundred ninety thousand, eight hundred sixty-three".