1672085905 has 32 divisors (see below), whose sum is σ = 2384363520. Its totient is φ = 1101504960.

The previous prime is 1672085887. The next prime is 1672085927. The reversal of 1672085905 is 5095802761.

It is not a de Polignac number, because 1672085905 - 2²³ = 1663697297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145272 + ... + 156358.

It is an arithmetic number, because the mean of its divisors is an integer number (74511360).

Almost surely, 2^1672085905 is an apocalyptic number.

It is an amenable number.

1672085905 is a deficient number, since it is larger than the sum of its proper divisors (712277615).

1672085905 is a wasteful number, since it uses less digits than its factorization.

1672085905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11269.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1672085905 is about 40891.1470247534. The cubic root of 1672085905 is about 1186.9147547187.

The spelling of 1672085905 in words is "one billion, six hundred seventy-two million, eighty-five thousand, nine hundred five".