456416989 has 4 divisors (see below), whose sum is σ = 521619424. Its totient is φ = 391214556.

The previous prime is 456416977. The next prime is 456417029. The reversal of 456416989 is 989614654.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 456416989 - 2⁵ = 456416957 is a prime.

It is a super-2 number, since 2×456416989² = 416632935695652242, 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 (456416959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32601207 + ... + 32601220.

It is an arithmetic number, because the mean of its divisors is an integer number (130404856).

Almost surely, 2^456416989 is an apocalyptic number.

It is an amenable number.

456416989 is a deficient number, since it is larger than the sum of its proper divisors (65202435).

456416989 is an equidigital number, since it uses as much as digits as its factorization.

456416989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65202434.

The product of its digits is 1866240, while the sum is 52.

The square root of 456416989 is about 21363.9179225160. The cubic root of 456416989 is about 769.9347721212.

The spelling of 456416989 in words is "four hundred fifty-six million, four hundred sixteen thousand, nine hundred eighty-nine".