97501440 has 72 divisors (see below), whose sum is σ = 311407488. Its totient is φ = 25999360.

The previous prime is 97501429. The next prime is 97501463. The reversal of 97501440 is 4410579.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 97501398 and 97501407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8856 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (4325104).

Almost surely, 2^97501440 is an apocalyptic number.

It is an amenable number.

97501440 is an abundant number, since it is smaller than the sum of its proper divisors (213906048).

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

97501440 is a wasteful number, since it uses less digits than its factorization.

97501440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25415 (or 25401 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 97501440 is about 9874.2817460309. The cubic root of 97501440 is about 460.2604700012.

The spelling of 97501440 in words is "ninety-seven million, five hundred one thousand, four hundred forty".