76672247 has 2 divisors, whose sum is σ = 76672248. Its totient is φ = 76672246.

The previous prime is 76672243. The next prime is 76672279. The reversal of 76672247 is 74227667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76672247 - 2² = 76672243 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76672243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38336123 + 38336124.

It is an arithmetic number, because the mean of its divisors is an integer number (38336124).

Almost surely, 2^76672247 is an apocalyptic number.

76672247 is a deficient number, since it is larger than the sum of its proper divisors (1).

76672247 is an equidigital number, since it uses as much as digits as its factorization.

76672247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 76672247 is about 8756.2690113998. The cubic root of 76672247 is about 424.8276062055.

The spelling of 76672247 in words is "seventy-six million, six hundred seventy-two thousand, two hundred forty-seven".