98155904 has 128 divisors (see below), whose sum is σ = 254983680. Its totient is φ = 36495360.

The previous prime is 98155891. The next prime is 98155907. The reversal of 98155904 is 40955189.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98155907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226472 + ... + 226904.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^98155904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98155904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127491840).

98155904 is an abundant number, since it is smaller than the sum of its proper divisors (156827776).

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

98155904 is a wasteful number, since it uses less digits than its factorization.

98155904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 98155904 is about 9907.3661484776. The cubic root of 98155904 is about 461.2879845237.

The spelling of 98155904 in words is "ninety-eight million, one hundred fifty-five thousand, nine hundred four".