472997786 has 4 divisors (see below), whose sum is σ = 709496682. Its totient is φ = 236498892.

The previous prime is 472997741. The next prime is 472997797. The reversal of 472997786 is 687799274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 278255761 + 194742025 = 16681^2 + 13955^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118249445 + ... + 118249448.

Almost surely, 2^472997786 is an apocalyptic number.

472997786 is a deficient number, since it is larger than the sum of its proper divisors (236498896).

472997786 is a wasteful number, since it uses less digits than its factorization.

472997786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236498895.

The product of its digits is 10668672, while the sum is 59.

The square root of 472997786 is about 21748.5122709578. The cubic root of 472997786 is about 779.1475378923.

The spelling of 472997786 in words is "four hundred seventy-two million, nine hundred ninety-seven thousand, seven hundred eighty-six".