891480513 has 32 divisors (see below), whose sum is σ = 1559946240. Its totient is φ = 438730560.

The previous prime is 891480487. The next prime is 891480517. The reversal of 891480513 is 315084198.

It is not a de Polignac number, because 891480513 - 2¹⁶ = 891414977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (891480517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97170 + ... + 105947.

It is an arithmetic number, because the mean of its divisors is an integer number (48748320).

Almost surely, 2^891480513 is an apocalyptic number.

It is an amenable number.

891480513 is a deficient number, since it is larger than the sum of its proper divisors (668465727).

891480513 is a wasteful number, since it uses less digits than its factorization.

891480513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203157.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 891480513 is about 29857.6709239016. The cubic root of 891480513 is about 962.4332490505.

The spelling of 891480513 in words is "eight hundred ninety-one million, four hundred eighty thousand, five hundred thirteen".