68670464 has 22 divisors (see below), whose sum is σ = 137275914. Its totient is φ = 34334720.

The previous prime is 68670461. The next prime is 68670467. The reversal of 68670464 is 46407686.

It is an interprime number because it is at equal distance from previous prime (68670461) and next prime (68670467).

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 14500864 = 7360^2 + 3808^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68670461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32507 + ... + 34554.

Almost surely, 2^68670464 is an apocalyptic number.

68670464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68670464 is a deficient number, since it is larger than the sum of its proper divisors (68605450).

68670464 is an equidigital number, since it uses as much as digits as its factorization.

68670464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67081 (or 67063 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 68670464 is about 8286.7643866590. The cubic root of 68670464 is about 409.5025972822.

The spelling of 68670464 in words is "sixty-eight million, six hundred seventy thousand, four hundred sixty-four".