47880397 has 4 divisors (see below), whose sum is σ = 48257536. Its totient is φ = 47503260.

The previous prime is 47880389. The next prime is 47880409. The reversal of 47880397 is 79308874.

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 47880397 - 2³ = 47880389 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 (47880307) 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, 188379 + ... + 188632.

It is an arithmetic number, because the mean of its divisors is an integer number (12064384).

Almost surely, 2^47880397 is an apocalyptic number.

It is an amenable number.

47880397 is a deficient number, since it is larger than the sum of its proper divisors (377139).

47880397 is a wasteful number, since it uses less digits than its factorization.

47880397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377138.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 47880397 is about 6919.5662436312. The cubic root of 47880397 is about 363.1220160160.

The spelling of 47880397 in words is "forty-seven million, eight hundred eighty thousand, three hundred ninety-seven".