48400997 has 4 divisors (see below), whose sum is σ = 48482400. Its totient is φ = 48319596.

The previous prime is 48400991. The next prime is 48401027. The reversal of 48400997 is 79900484.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48400997 - 2⁴ = 48400981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48400991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39803 + ... + 41000.

It is an arithmetic number, because the mean of its divisors is an integer number (12120600).

Almost surely, 2^48400997 is an apocalyptic number.

It is an amenable number.

48400997 is a deficient number, since it is larger than the sum of its proper divisors (81403).

48400997 is an equidigital number, since it uses as much as digits as its factorization.

48400997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81402.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 48400997 is about 6957.0825063384. The cubic root of 48400997 is about 364.4333410267.

The spelling of 48400997 in words is "forty-eight million, four hundred thousand, nine hundred ninety-seven".