672635782 has 32 divisors (see below), whose sum is σ = 1295788032. Its totient is φ = 254526624.

The previous prime is 672635779. The next prime is 672635801. The reversal of 672635782 is 287536276.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76158 + ... + 84529.

It is an arithmetic number, because the mean of its divisors is an integer number (40493376).

Almost surely, 2^672635782 is an apocalyptic number.

672635782 is a deficient number, since it is larger than the sum of its proper divisors (623152250).

672635782 is a wasteful number, since it uses less digits than its factorization.

672635782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160732.

The product of its digits is 846720, while the sum is 46.

The square root of 672635782 is about 25935.2228060605. Note that the first 3 decimals coincide. The cubic root of 672635782 is about 876.1799729956.

The spelling of 672635782 in words is "six hundred seventy-two million, six hundred thirty-five thousand, seven hundred eighty-two".