89948691 has 32 divisors (see below), whose sum is σ = 157555200. Its totient is φ = 49623840.

The previous prime is 89948669. The next prime is 89948713. The reversal of 89948691 is 19684998.

It is an interprime number because it is at equal distance from previous prime (89948669) and next prime (89948713).

It is not a de Polignac number, because 89948691 - 2⁷ = 89948563 is a prime.

It is a super-2 number, since 2×89948691² = 16181534025226962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89948291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2725 + ... + 13686.

It is an arithmetic number, because the mean of its divisors is an integer number (4923600).

Almost surely, 2^89948691 is an apocalyptic number.

89948691 is a deficient number, since it is larger than the sum of its proper divisors (67606509).

89948691 is a wasteful number, since it uses less digits than its factorization.

89948691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16456 (or 16450 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 89948691 is about 9484.1283732349. The cubic root of 89948691 is about 448.0552968388.

The spelling of 89948691 in words is "eighty-nine million, nine hundred forty-eight thousand, six hundred ninety-one".