1672768507 has 2 divisors, whose sum is σ = 1672768508. Its totient is φ = 1672768506.

The previous prime is 1672768481. The next prime is 1672768511. The reversal of 1672768507 is 7058672761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672768507 is a prime.

It is a super-2 number, since 2×1672768507² = 5596308956022018098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1672766507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836384253 + 836384254.

It is an arithmetic number, because the mean of its divisors is an integer number (836384254).

Almost surely, 2^1672768507 is an apocalyptic number.

1672768507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672768507 is an equidigital number, since it uses as much as digits as its factorization.

1672768507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 1672768507 is about 40899.4927474657. The cubic root of 1672768507 is about 1187.0762456562.

The spelling of 1672768507 in words is "one billion, six hundred seventy-two million, seven hundred sixty-eight thousand, five hundred seven".