1672074657 has 20 divisors (see below), whose sum is σ = 2724863856. Its totient is φ = 1013378040.

The previous prime is 1672074647. The next prime is 1672074743. The reversal of 1672074657 is 7564702761.

1672074657 is a `hidden beast` number, since 167 + 20 + 7 + 465 + 7 = 666.

It is not a de Polignac number, because 1672074657 - 2⁷ = 1672074529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1672074617) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 937423 + ... + 939204.

Almost surely, 2^1672074657 is an apocalyptic number.

It is an amenable number.

1672074657 is a deficient number, since it is larger than the sum of its proper divisors (1052789199).

1672074657 is a wasteful number, since it uses less digits than its factorization.

1672074657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876650 (or 1876641 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 1672074657 is about 40891.0094886394. The cubic root of 1672074657 is about 1186.9120932830.

The spelling of 1672074657 in words is "one billion, six hundred seventy-two million, seventy-four thousand, six hundred fifty-seven".