98290578 has 16 divisors (see below), whose sum is σ = 199913760. Its totient is φ = 32208096.

The previous prime is 98290573. The next prime is 98290579. The reversal of 98290578 is 87509289.

It is a happy number.

It is a super-2 number, since 2×98290578² = 19322075447148168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98290573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138475 + ... + 139182.

It is an arithmetic number, because the mean of its divisors is an integer number (12494610).

Almost surely, 2^98290578 is an apocalyptic number.

98290578 is an abundant number, since it is smaller than the sum of its proper divisors (101623182).

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

98290578 is a wasteful number, since it uses less digits than its factorization.

98290578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277721.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 98290578 is about 9914.1604788303. The cubic root of 98290578 is about 461.4988569050.

The spelling of 98290578 in words is "ninety-eight million, two hundred ninety thousand, five hundred seventy-eight".