1672672297 has 2 divisors, whose sum is σ = 1672672298. Its totient is φ = 1672672296.

The previous prime is 1672672289. The next prime is 1672672303. The reversal of 1672672297 is 7922762761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946423696 + 726248601 = 30764^2 + 26949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672672297 - 2³ = 1672672289 is a prime.

It is a super-2 number, since 2×1672672297² = 5595665226302512418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1672672297.

It is not a weakly prime, because it can be changed into another prime (1672672097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836336148 + 836336149.

It is an arithmetic number, because the mean of its divisors is an integer number (836336149).

Almost surely, 2^1672672297 is an apocalyptic number.

It is an amenable number.

1672672297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672672297 is an equidigital number, since it uses as much as digits as its factorization.

1672672297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 49.

The square root of 1672672297 is about 40898.3165545967. The cubic root of 1672672297 is about 1187.0534868197.

The spelling of 1672672297 in words is "one billion, six hundred seventy-two million, six hundred seventy-two thousand, two hundred ninety-seven".