98771580 has 108 divisors (see below), whose sum is σ = 310125816. Its totient is φ = 25444800.

The previous prime is 98771573. The next prime is 98771587. The reversal of 98771580 is 8517789.

It is an interprime number because it is at equal distance from previous prime (98771573) and next prime (98771587).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98771587) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 172695 + ... + 173265.

Almost surely, 2^98771580 is an apocalyptic number.

98771580 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98771580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155062908).

98771580 is an abundant number, since it is smaller than the sum of its proper divisors (211354236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98771580 is a wasteful number, since it uses less digits than its factorization.

98771580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 98771580 is about 9938.3892055001. The cubic root of 98771580 is about 462.2504404805.

The spelling of 98771580 in words is "ninety-eight million, seven hundred seventy-one thousand, five hundred eighty".