7391620667 has 2 divisors, whose sum is σ = 7391620668. Its totient is φ = 7391620666.

The previous prime is 7391620651. The next prime is 7391620727. The reversal of 7391620667 is 7660261937.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7391620667 - 2⁴ = 7391620651 is a prime.

It is not a weakly prime, because it can be changed into another prime (7391623667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3695810333 + 3695810334.

It is an arithmetic number, because the mean of its divisors is an integer number (3695810334).

Almost surely, 2^7391620667 is an apocalyptic number.

7391620667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7391620667 is an equidigital number, since it uses as much as digits as its factorization.

7391620667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 7391620667 is about 85974.5349914729. The cubic root of 7391620667 is about 1947.9593525911.

The spelling of 7391620667 in words is "seven billion, three hundred ninety-one million, six hundred twenty thousand, six hundred sixty-seven".