472187797 has 16 divisors (see below), whose sum is σ = 487872000. Its totient is φ = 456833520.

The previous prime is 472187783. The next prime is 472187839. The reversal of 472187797 is 797781274.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 472187797 - 2²⁷ = 337970069 is a prime.

It is a super-2 number, since 2×472187797² = 445922631271426418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472187497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537918 + ... + 1538224.

It is an arithmetic number, because the mean of its divisors is an integer number (30492000).

Almost surely, 2^472187797 is an apocalyptic number.

It is an amenable number.

472187797 is a deficient number, since it is larger than the sum of its proper divisors (15684203).

472187797 is a wasteful number, since it uses less digits than its factorization.

472187797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its digits is 1382976, while the sum is 52.

The square root of 472187797 is about 21729.8825813671. The cubic root of 472187797 is about 778.7025312125.

The spelling of 472187797 in words is "four hundred seventy-two million, one hundred eighty-seven thousand, seven hundred ninety-seven".