89180977 has 2 divisors, whose sum is σ = 89180978. Its totient is φ = 89180976.

The previous prime is 89180947. The next prime is 89181007. The reversal of 89180977 is 77908198.

It is a balanced prime because it is at equal distance from previous prime (89180947) and next prime (89181007).

It can be written as a sum of positive squares in only one way, i.e., 45104656 + 44076321 = 6716^2 + 6639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89180977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89180977.

It is not a weakly prime, because it can be changed into another prime (89180947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44590488 + 44590489.

It is an arithmetic number, because the mean of its divisors is an integer number (44590489).

Almost surely, 2^89180977 is an apocalyptic number.

It is an amenable number.

89180977 is a deficient number, since it is larger than the sum of its proper divisors (1).

89180977 is an equidigital number, since it uses as much as digits as its factorization.

89180977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 89180977 is about 9443.5680227338. The cubic root of 89180977 is about 446.7769324440.

The spelling of 89180977 in words is "eighty-nine million, one hundred eighty thousand, nine hundred seventy-seven".