918472465 has 8 divisors (see below), whose sum is σ = 1105291368. Its totient is φ = 732695040.

The previous prime is 918472417. The next prime is 918472493. The reversal of 918472465 is 564274819.

It can be written as a sum of positive squares in 4 ways, for example, as 4498641 + 913973824 = 2121^2 + 30232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 918472465 - 2⁷ = 918472337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258426 + ... + 261955.

It is an arithmetic number, because the mean of its divisors is an integer number (138161421).

Almost surely, 2^918472465 is an apocalyptic number.

It is an amenable number.

918472465 is a deficient number, since it is larger than the sum of its proper divisors (186818903).

918472465 is a wasteful number, since it uses less digits than its factorization.

918472465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520739.

The product of its digits is 483840, while the sum is 46.

The square root of 918472465 is about 30306.3106464644. The cubic root of 918472465 is about 972.0502441611.

The spelling of 918472465 in words is "nine hundred eighteen million, four hundred seventy-two thousand, four hundred sixty-five".