1679555672 has 8 divisors (see below), whose sum is σ = 3149166900. Its totient is φ = 839777832.

The previous prime is 1679555663. The next prime is 1679555701. The reversal of 1679555672 is 2765559761.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104972222 + ... + 104972237.

Almost surely, 2^1679555672 is an apocalyptic number.

It is an amenable number.

1679555672 is a deficient number, since it is larger than the sum of its proper divisors (1469611228).

1679555672 is a wasteful number, since it uses less digits than its factorization.

1679555672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209944465 (or 209944461 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 53.

The square root of 1679555672 is about 40982.3824588078. The cubic root of 1679555672 is about 1188.6795777025.

The spelling of 1679555672 in words is "one billion, six hundred seventy-nine million, five hundred fifty-five thousand, six hundred seventy-two".