89550631 has 2 divisors, whose sum is σ = 89550632. Its totient is φ = 89550630.

The previous prime is 89550607. The next prime is 89550677. The reversal of 89550631 is 13605598.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89550631 - 2¹⁷ = 89419559 is a prime.

It is a super-2 number, since 2×89550631² = 16038631024996322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89550931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44775315 + 44775316.

It is an arithmetic number, because the mean of its divisors is an integer number (44775316).

Almost surely, 2^89550631 is an apocalyptic number.

89550631 is a deficient number, since it is larger than the sum of its proper divisors (1).

89550631 is an equidigital number, since it uses as much as digits as its factorization.

89550631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 89550631 is about 9463.1195173685. The cubic root of 89550631 is about 447.3933763846.

The spelling of 89550631 in words is "eighty-nine million, five hundred fifty thousand, six hundred thirty-one".