1672672459 has 2 divisors, whose sum is σ = 1672672460. Its totient is φ = 1672672458.

The previous prime is 1672672403. The next prime is 1672672489. The reversal of 1672672459 is 9542762761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1672672459 - 2¹⁵ = 1672639691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672672489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836336229 + 836336230.

It is an arithmetic number, because the mean of its divisors is an integer number (836336230).

Almost surely, 2^1672672459 is an apocalyptic number.

1672672459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672672459 is an equidigital number, since it uses as much as digits as its factorization.

1672672459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 1672672459 is about 40898.3185351183. The cubic root of 1672672459 is about 1187.0535251421.

The spelling of 1672672459 in words is "one billion, six hundred seventy-two million, six hundred seventy-two thousand, four hundred fifty-nine".