89646031 has 2 divisors, whose sum is σ = 89646032. Its totient is φ = 89646030.

The previous prime is 89646023. The next prime is 89646103. The reversal of 89646031 is 13064698.

Together with next prime (89646103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89646031 - 2³ = 89646023 is a prime.

It is a super-2 number, since 2×89646031² = 16072821748105922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89646331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44823015 + 44823016.

It is an arithmetic number, because the mean of its divisors is an integer number (44823016).

Almost surely, 2^89646031 is an apocalyptic number.

89646031 is a deficient number, since it is larger than the sum of its proper divisors (1).

89646031 is an equidigital number, since it uses as much as digits as its factorization.

89646031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 89646031 is about 9468.1587967249. The cubic root of 89646031 is about 447.5521922418.

The spelling of 89646031 in words is "eighty-nine million, six hundred forty-six thousand, thirty-one".