68764770 has 24 divisors (see below), whose sum is σ = 178788636. Its totient is φ = 18337248.

The previous prime is 68764763. The next prime is 68764793. The reversal of 68764770 is 7746786.

It can be written as a sum of positive squares in 2 ways, for example, as 67617729 + 1147041 = 8223^2 + 1071^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381937 + ... + 382116.

Almost surely, 2^68764770 is an apocalyptic number.

68764770 is an abundant number, since it is smaller than the sum of its proper divisors (110023866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68764770 is a wasteful number, since it uses less digits than its factorization.

68764770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764066 (or 764063 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 68764770 is about 8292.4525925687. The cubic root of 68764770 is about 409.6899698668.

The spelling of 68764770 in words is "sixty-eight million, seven hundred sixty-four thousand, seven hundred seventy".