632720089 has 2 divisors, whose sum is σ = 632720090. Its totient is φ = 632720088.

The previous prime is 632720029. The next prime is 632720117. The reversal of 632720089 is 980027236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317124864 + 315595225 = 17808^2 + 17765^2 .

It is a cyclic number.

It is not a de Polignac number, because 632720089 - 2¹¹ = 632718041 is a prime.

It is a super-2 number, since 2×632720089² = 800669422048335842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (632720029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316360044 + 316360045.

It is an arithmetic number, because the mean of its divisors is an integer number (316360045).

Almost surely, 2^632720089 is an apocalyptic number.

It is an amenable number.

632720089 is a deficient number, since it is larger than the sum of its proper divisors (1).

632720089 is an equidigital number, since it uses as much as digits as its factorization.

632720089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 632720089 is about 25153.9279040074. The cubic root of 632720089 is about 858.4938885964.

The spelling of 632720089 in words is "six hundred thirty-two million, seven hundred twenty thousand, eighty-nine".