98745557 has 4 divisors (see below), whose sum is σ = 98767680. Its totient is φ = 98723436.

The previous prime is 98745541. The next prime is 98745583. The reversal of 98745557 is 75554789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75554789 = 4973 ⋅15193.

It is a cyclic number.

It is not a de Polignac number, because 98745557 - 2⁴ = 98745541 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 (98748557) 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, 1757 + ... + 14162.

It is an arithmetic number, because the mean of its divisors is an integer number (24691920).

Almost surely, 2^98745557 is an apocalyptic number.

It is an amenable number.

98745557 is a deficient number, since it is larger than the sum of its proper divisors (22123).

98745557 is a wasteful number, since it uses less digits than its factorization.

98745557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22122.

The product of its digits is 1764000, while the sum is 50.

The square root of 98745557 is about 9937.0799030701. The cubic root of 98745557 is about 462.2098410834.

The spelling of 98745557 in words is "ninety-eight million, seven hundred forty-five thousand, five hundred fifty-seven".