472172087 has 2 divisors, whose sum is σ = 472172088. Its totient is φ = 472172086.

The previous prime is 472172039. The next prime is 472172101. The reversal of 472172087 is 780271274.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 472172087 - 2⁶ = 472172023 is a prime.

It is a Chen prime.

It is equal to p_24964643 and since 472172087 and 24964643 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 472172087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472172587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236086043 + 236086044.

It is an arithmetic number, because the mean of its divisors is an integer number (236086044).

Almost surely, 2^472172087 is an apocalyptic number.

472172087 is a deficient number, since it is larger than the sum of its proper divisors (1).

472172087 is an equidigital number, since it uses as much as digits as its factorization.

472172087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 472172087 is about 21729.5210945847. The cubic root of 472172087 is about 778.6938951342.

The spelling of 472172087 in words is "four hundred seventy-two million, one hundred seventy-two thousand, eighty-seven".