98877479 has 2 divisors, whose sum is σ = 98877480. Its totient is φ = 98877478.

The previous prime is 98877473. The next prime is 98877481. The reversal of 98877479 is 97477889.

It is a strong prime.

It is an emirp because it is prime and its reverse (97477889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98877479 is a prime.

It is a Sophie Germain prime.

Together with 98877481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98877473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49438739 + 49438740.

It is an arithmetic number, because the mean of its divisors is an integer number (49438740).

Almost surely, 2^98877479 is an apocalyptic number.

98877479 is a deficient number, since it is larger than the sum of its proper divisors (1).

98877479 is an equidigital number, since it uses as much as digits as its factorization.

98877479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 59.

The square root of 98877479 is about 9943.7155530516. The cubic root of 98877479 is about 462.4155837166.

The spelling of 98877479 in words is "ninety-eight million, eight hundred seventy-seven thousand, four hundred seventy-nine".