634986470 has 16 divisors (see below), whose sum is σ = 1160036208. Its totient is φ = 250203360.

The previous prime is 634986467. The next prime is 634986493. The reversal of 634986470 is 74689436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473201 + ... + 474540.

It is an arithmetic number, because the mean of its divisors is an integer number (72502263).

Almost surely, 2^634986470 is an apocalyptic number.

634986470 is a deficient number, since it is larger than the sum of its proper divisors (525049738).

634986470 is a wasteful number, since it uses less digits than its factorization.

634986470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947815.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 634986470 is about 25198.9378744422. The cubic root of 634986470 is about 859.5176987411.

The spelling of 634986470 in words is "six hundred thirty-four million, nine hundred eighty-six thousand, four hundred seventy".