89629481 has 2 divisors, whose sum is σ = 89629482. Its totient is φ = 89629480.

The previous prime is 89629471. The next prime is 89629483. The reversal of 89629481 is 18492698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83101456 + 6528025 = 9116^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 89629481 - 2¹⁰ = 89628457 is a prime.

It is a super-2 number, since 2×89629481² = 16066887728658722, which contains 22 as substring.

Together with 89629483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89629483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44814740 + 44814741.

It is an arithmetic number, because the mean of its divisors is an integer number (44814741).

Almost surely, 2^89629481 is an apocalyptic number.

It is an amenable number.

89629481 is a deficient number, since it is larger than the sum of its proper divisors (1).

89629481 is an equidigital number, since it uses as much as digits as its factorization.

89629481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 89629481 is about 9467.2847744219. The cubic root of 89629481 is about 447.5246489341.

The spelling of 89629481 in words is "eighty-nine million, six hundred twenty-nine thousand, four hundred eighty-one".