76630139 has 2 divisors, whose sum is σ = 76630140. Its totient is φ = 76630138.

The previous prime is 76630133. The next prime is 76630187. The reversal of 76630139 is 93103667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76630139 - 2⁴ = 76630123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76630099 and 76630108.

It is not a weakly prime, because it can be changed into another prime (76630133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38315069 + 38315070.

It is an arithmetic number, because the mean of its divisors is an integer number (38315070).

Almost surely, 2^76630139 is an apocalyptic number.

76630139 is a deficient number, since it is larger than the sum of its proper divisors (1).

76630139 is an equidigital number, since it uses as much as digits as its factorization.

76630139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 76630139 is about 8753.8642324404. The cubic root of 76630139 is about 424.7498209254.

The spelling of 76630139 in words is "seventy-six million, six hundred thirty thousand, one hundred thirty-nine".