91462989 has 16 divisors (see below), whose sum is σ = 126203904. Its totient is φ = 58858800.

The previous prime is 91462939. The next prime is 91462997. The reversal of 91462989 is 98926419.

It is not a de Polignac number, because 91462989 - 2⁹ = 91462477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91462909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44662 + ... + 46664.

It is an arithmetic number, because the mean of its divisors is an integer number (7887744).

Almost surely, 2^91462989 is an apocalyptic number.

It is an amenable number.

91462989 is a deficient number, since it is larger than the sum of its proper divisors (34740915).

91462989 is a wasteful number, since it uses less digits than its factorization.

91462989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its digits is 279936, while the sum is 48.

The square root of 91462989 is about 9563.6284432217. The cubic root of 91462989 is about 450.5556740477. Note that the first 3 decimals are identical.

It can be divided in two parts, 914 and 62989, that added together give a triangular number (63903 = T₃₅₇).

The spelling of 91462989 in words is "ninety-one million, four hundred sixty-two thousand, nine hundred eighty-nine".