472521197 has 2 divisors, whose sum is σ = 472521198. Its totient is φ = 472521196.

The previous prime is 472521193. The next prime is 472521227. The reversal of 472521197 is 791125274.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469762276 + 2758921 = 21674^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 472521197 - 2² = 472521193 is a prime.

It is a super-3 number, since 3×472521197³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 472521197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472521193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236260598 + 236260599.

It is an arithmetic number, because the mean of its divisors is an integer number (236260599).

Almost surely, 2^472521197 is an apocalyptic number.

It is an amenable number.

472521197 is a deficient number, since it is larger than the sum of its proper divisors (1).

472521197 is an equidigital number, since it uses as much as digits as its factorization.

472521197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 472521197 is about 21737.5526911380. The cubic root of 472521197 is about 778.8857622249.

The spelling of 472521197 in words is "four hundred seventy-two million, five hundred twenty-one thousand, one hundred ninety-seven".