88690249 has 2 divisors, whose sum is σ = 88690250. Its totient is φ = 88690248.

The previous prime is 88690229. The next prime is 88690291. The reversal of 88690249 is 94209688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71318025 + 17372224 = 8445^2 + 4168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88690249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88690199 and 88690208.

It is not a weakly prime, because it can be changed into another prime (88690229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44345124 + 44345125.

It is an arithmetic number, because the mean of its divisors is an integer number (44345125).

Almost surely, 2^88690249 is an apocalyptic number.

It is an amenable number.

88690249 is a deficient number, since it is larger than the sum of its proper divisors (1).

88690249 is an equidigital number, since it uses as much as digits as its factorization.

88690249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 88690249 is about 9417.5500529596. The cubic root of 88690249 is about 445.9559452286.

The spelling of 88690249 in words is "eighty-eight million, six hundred ninety thousand, two hundred forty-nine".