632720417 has 4 divisors (see below), whose sum is σ = 723109056. Its totient is φ = 542331780.

The previous prime is 632720393. The next prime is 632720441. The reversal of 632720417 is 714027236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (632720393) and next prime (632720441).

It is a cyclic number.

It is not a de Polignac number, because 632720417 - 2²² = 628526113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632720117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45194309 + ... + 45194322.

It is an arithmetic number, because the mean of its divisors is an integer number (180777264).

Almost surely, 2^632720417 is an apocalyptic number.

It is an amenable number.

632720417 is a deficient number, since it is larger than the sum of its proper divisors (90388639).

632720417 is an equidigital number, since it uses as much as digits as its factorization.

632720417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90388638.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 632720417 is about 25153.9344238630. The cubic root of 632720417 is about 858.4940369432.

The spelling of 632720417 in words is "six hundred thirty-two million, seven hundred twenty thousand, four hundred seventeen".