864629451 has 24 divisors (see below), whose sum is σ = 1490066640. Its totient is φ = 494073216.

The previous prime is 864629419. The next prime is 864629459. The reversal of 864629451 is 154926468.

864629451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864629451 - 2⁵ = 864629419 is a prime.

It is a super-2 number, since 2×864629451² = 1495168175073122802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864629397 and 864629406.

It is not an unprimeable number, because it can be changed into a prime (864629459) 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, 325446 + ... + 328091.

It is an arithmetic number, because the mean of its divisors is an integer number (62086110).

Almost surely, 2^864629451 is an apocalyptic number.

864629451 is a deficient number, since it is larger than the sum of its proper divisors (625437189).

864629451 is a wasteful number, since it uses less digits than its factorization.

864629451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653560 (or 653547 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 864629451 is about 29404.5821429246. The cubic root of 864629451 is about 952.6718692898.

The spelling of 864629451 in words is "eight hundred sixty-four million, six hundred twenty-nine thousand, four hundred fifty-one".