770136938 has 4 divisors (see below), whose sum is σ = 1155205410. Its totient is φ = 385068468.

The previous prime is 770136911. The next prime is 770136947. The reversal of 770136938 is 839631077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 643281769 + 126855169 = 25363^2 + 11263^2 .

It is a super-2 number, since 2×770136938² = 1186221806544031688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192534233 + ... + 192534236.

Almost surely, 2^770136938 is an apocalyptic number.

770136938 is a deficient number, since it is larger than the sum of its proper divisors (385068472).

770136938 is a wasteful number, since it uses less digits than its factorization.

770136938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385068471.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 770136938 is about 27751.3411928144. The cubic root of 770136938 is about 916.6199767000.

The spelling of 770136938 in words is "seven hundred seventy million, one hundred thirty-six thousand, nine hundred thirty-eight".