89948557 has 2 divisors, whose sum is σ = 89948558. Its totient is φ = 89948556.

The previous prime is 89948543. The next prime is 89948563. The reversal of 89948557 is 75584998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64738116 + 25210441 = 8046^2 + 5021^2 .

It is a cyclic number.

It is not a de Polignac number, because 89948557 - 2¹¹ = 89946509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89948498 and 89948507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89948657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44974278 + 44974279.

It is an arithmetic number, because the mean of its divisors is an integer number (44974279).

Almost surely, 2^89948557 is an apocalyptic number.

It is an amenable number.

89948557 is a deficient number, since it is larger than the sum of its proper divisors (1).

89948557 is an equidigital number, since it uses as much as digits as its factorization.

89948557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 89948557 is about 9484.1213087982. The cubic root of 89948557 is about 448.0550743437.

The spelling of 89948557 in words is "eighty-nine million, nine hundred forty-eight thousand, five hundred fifty-seven".