89903797 has 4 divisors (see below), whose sum is σ = 90296620. Its totient is φ = 89510976.

The previous prime is 89903783. The next prime is 89903831. The reversal of 89903797 is 79730998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 47210641 = 6534^2 + 6871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89903797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89903777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196068 + ... + 196525.

It is an arithmetic number, because the mean of its divisors is an integer number (22574155).

Almost surely, 2^89903797 is an apocalyptic number.

It is an amenable number.

89903797 is a deficient number, since it is larger than the sum of its proper divisors (392823).

89903797 is a wasteful number, since it uses less digits than its factorization.

89903797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392822.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 89903797 is about 9481.7612815341. The cubic root of 89903797 is about 447.9807419576.

The spelling of 89903797 in words is "eighty-nine million, nine hundred three thousand, seven hundred ninety-seven".