67631494 has 16 divisors (see below), whose sum is σ = 116264448. Its totient is φ = 28903752.

The previous prime is 67631483. The next prime is 67631513. The reversal of 67631494 is 49413676.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444 + ... + 11719.

It is an arithmetic number, because the mean of its divisors is an integer number (7266528).

Almost surely, 2^67631494 is an apocalyptic number.

67631494 is a deficient number, since it is larger than the sum of its proper divisors (48632954).

67631494 is a wasteful number, since it uses less digits than its factorization.

67631494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13539.

The product of its digits is 108864, while the sum is 40.

The square root of 67631494 is about 8223.8369390449. The cubic root of 67631494 is about 407.4268633094.

The spelling of 67631494 in words is "sixty-seven million, six hundred thirty-one thousand, four hundred ninety-four".