672550776 has 80 divisors (see below), whose sum is σ = 1934746440. Its totient is φ = 218116800.

The previous prime is 672550729. The next prime is 672550807. The reversal of 672550776 is 677055276.

672550776 is a `hidden beast` number, since 6 + 72 + 5 + 507 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9951 + ... + 38001.

Almost surely, 2^672550776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672550776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967373220).

672550776 is an abundant number, since it is smaller than the sum of its proper divisors (1262195664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672550776 is a wasteful number, since it uses less digits than its factorization.

672550776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28106 (or 28093 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The square root of 672550776 is about 25933.5839405201. The cubic root of 672550776 is about 876.1430616416.

The spelling of 672550776 in words is "six hundred seventy-two million, five hundred fifty thousand, seven hundred seventy-six".