97540401 has 16 divisors (see below), whose sum is σ = 155096064. Its totient is φ = 53313744.

The previous prime is 97540381. The next prime is 97540459. The reversal of 97540401 is 10404579.

It is a happy number.

It is not a de Polignac number, because 97540401 - 2⁹ = 97539889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97540801) 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, 100491 + ... + 101456.

It is an arithmetic number, because the mean of its divisors is an integer number (9693504).

Almost surely, 2^97540401 is an apocalyptic number.

It is an amenable number.

97540401 is a deficient number, since it is larger than the sum of its proper divisors (57555663).

97540401 is a wasteful number, since it uses less digits than its factorization.

97540401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201980.

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

The square root of 97540401 is about 9876.2544013406. The cubic root of 97540401 is about 460.3217676263.

The spelling of 97540401 in words is "ninety-seven million, five hundred forty thousand, four hundred one".