89725039 has 2 divisors, whose sum is σ = 89725040. Its totient is φ = 89725038.

The previous prime is 89725019. The next prime is 89725061. The reversal of 89725039 is 93052798.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89725039 - 2²⁵ = 56170607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89724986 and 89725004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89725019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44862519 + 44862520.

It is an arithmetic number, because the mean of its divisors is an integer number (44862520).

Almost surely, 2^89725039 is an apocalyptic number.

89725039 is a deficient number, since it is larger than the sum of its proper divisors (1).

89725039 is an equidigital number, since it uses as much as digits as its factorization.

89725039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 89725039 is about 9472.3301779446. The cubic root of 89725039 is about 447.6836344642.

The spelling of 89725039 in words is "eighty-nine million, seven hundred twenty-five thousand, thirty-nine".