47398397 has 8 divisors (see below), whose sum is σ = 50444856. Its totient is φ = 44380672.

The previous prime is 47398381. The next prime is 47398399. The reversal of 47398397 is 79389374.

It can be written as a sum of positive squares in 4 ways, for example, as 24492601 + 22905796 = 4949^2 + 4786^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47398397 - 2⁴ = 47398381 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 (47398399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3728 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (6305607).

Almost surely, 2^47398397 is an apocalyptic number.

It is an amenable number.

47398397 is a deficient number, since it is larger than the sum of its proper divisors (3046459).

47398397 is a wasteful number, since it uses less digits than its factorization.

47398397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14367.

The product of its digits is 1143072, while the sum is 50.

The square root of 47398397 is about 6884.6493737880. The cubic root of 47398397 is about 361.8994180434.

The spelling of 47398397 in words is "forty-seven million, three hundred ninety-eight thousand, three hundred ninety-seven".