98562791 has 4 divisors (see below), whose sum is σ = 98582784. Its totient is φ = 98542800.

The previous prime is 98562773. The next prime is 98562799. The reversal of 98562791 is 19726589.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98562791 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 (98562799) 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, 3251 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (24645696).

Almost surely, 2^98562791 is an apocalyptic number.

98562791 is a deficient number, since it is larger than the sum of its proper divisors (19993).

98562791 is a wasteful number, since it uses less digits than its factorization.

98562791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19992.

The product of its digits is 272160, while the sum is 47.

The square root of 98562791 is about 9927.8794815409. The cubic root of 98562791 is about 461.9245002591.

The spelling of 98562791 in words is "ninety-eight million, five hundred sixty-two thousand, seven hundred ninety-one".