97437420 has 72 divisors (see below), whose sum is σ = 296412480. Its totient is φ = 25908480.

The previous prime is 97437383. The next prime is 97437437. The reversal of 97437420 is 2473479.

It is a Smith number, since the sum of its digits (36) 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 (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93261 + ... + 94299.

It is an arithmetic number, because the mean of its divisors is an integer number (4116840).

Almost surely, 2^97437420 is an apocalyptic number.

97437420 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 97437420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148206240).

97437420 is an abundant number, since it is smaller than the sum of its proper divisors (198975060).

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

97437420 is a wasteful number, since it uses less digits than its factorization.

97437420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 97437420 is about 9871.0394589425. The cubic root of 97437420 is about 460.1597113977.

The spelling of 97437420 in words is "ninety-seven million, four hundred thirty-seven thousand, four hundred twenty".