77692994 has 8 divisors (see below), whose sum is σ = 116661708. Its totient is φ = 38805760.

The previous prime is 77692939. The next prime is 77692997. The reversal of 77692994 is 49929677.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77668969 + 24025 = 8813^2 + 155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77692997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17927 + ... + 21834.

Almost surely, 2^77692994 is an apocalyptic number.

77692994 is a deficient number, since it is larger than the sum of its proper divisors (38968714).

77692994 is a wasteful number, since it uses less digits than its factorization.

77692994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40740.

The product of its digits is 1714608, while the sum is 53.

The square root of 77692994 is about 8814.3629378418. The cubic root of 77692994 is about 426.7045619282.

The spelling of 77692994 in words is "seventy-seven million, six hundred ninety-two thousand, nine hundred ninety-four".