98979877 has 2 divisors, whose sum is σ = 98979878. Its totient is φ = 98979876.

The previous prime is 98979809. The next prime is 98979887. The reversal of 98979877 is 77897989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65270241 + 33709636 = 8079^2 + 5806^2 .

It is a cyclic number.

It is not a de Polignac number, because 98979877 - 2¹¹ = 98977829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98979887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49489938 + 49489939.

It is an arithmetic number, because the mean of its divisors is an integer number (49489939).

Almost surely, 2^98979877 is an apocalyptic number.

It is an amenable number.

98979877 is a deficient number, since it is larger than the sum of its proper divisors (1).

98979877 is an equidigital number, since it uses as much as digits as its factorization.

98979877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 64.

The square root of 98979877 is about 9948.8631008774. The cubic root of 98979877 is about 462.5751552569.

It can be divided in two parts, 98979 and 877, that added together give a square (99856 = 316²).

The spelling of 98979877 in words is "ninety-eight million, nine hundred seventy-nine thousand, eight hundred seventy-seven".