97903998 has 64 divisors (see below), whose sum is σ = 235296000. Its totient is φ = 30069792.

The previous prime is 97903997. The next prime is 97904033. The reversal of 97903998 is 89930979.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97903997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36673 + ... + 39251.

It is an arithmetic number, because the mean of its divisors is an integer number (3676500).

Almost surely, 2^97903998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97903998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117648000).

97903998 is an abundant number, since it is smaller than the sum of its proper divisors (137392002).

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

97903998 is a wasteful number, since it uses less digits than its factorization.

97903998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2640 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 97903998 is about 9894.6449153065. The cubic root of 97903998 is about 460.8930320247.

The spelling of 97903998 in words is "ninety-seven million, nine hundred three thousand, nine hundred ninety-eight".