790927138 has 4 divisors (see below), whose sum is σ = 1186390710. Its totient is φ = 395463568.

The previous prime is 790927099. The next prime is 790927153. The reversal of 790927138 is 831729097.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831729097 = 17 ⋅48925241.

It can be written as a sum of positive squares in only one way, i.e., 605504449 + 185422689 = 24607^2 + 13617^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197731783 + ... + 197731786.

Almost surely, 2^790927138 is an apocalyptic number.

790927138 is a deficient number, since it is larger than the sum of its proper divisors (395463572).

790927138 is a wasteful number, since it uses less digits than its factorization.

790927138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395463571.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 790927138 is about 28123.4268537815. The cubic root of 790927138 is about 924.7950412218.

The spelling of 790927138 in words is "seven hundred ninety million, nine hundred twenty-seven thousand, one hundred thirty-eight".