89722601 has 2 divisors, whose sum is σ = 89722602. Its totient is φ = 89722600.

The previous prime is 89722597. The next prime is 89722627. The reversal of 89722601 is 10622798.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49336576 + 40386025 = 7024^2 + 6355^2 .

It is a cyclic number.

It is not a de Polignac number, because 89722601 - 2² = 89722597 is a prime.

It is not a weakly prime, because it can be changed into another prime (89722001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44861300 + 44861301.

It is an arithmetic number, because the mean of its divisors is an integer number (44861301).

Almost surely, 2^89722601 is an apocalyptic number.

It is an amenable number.

89722601 is a deficient number, since it is larger than the sum of its proper divisors (1).

89722601 is an equidigital number, since it uses as much as digits as its factorization.

89722601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 89722601 is about 9472.2014864550. The cubic root of 89722601 is about 447.6795796222.

The spelling of 89722601 in words is "eighty-nine million, seven hundred twenty-two thousand, six hundred one".