47921401 has 16 divisors (see below), whose sum is σ = 56525760. Its totient is φ = 40150080.

The previous prime is 47921399. The next prime is 47921429. The reversal of 47921401 is 10412974.

It is a cyclic number.

It is not a de Polignac number, because 47921401 - 2¹ = 47921399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47921401.

It is not an unprimeable number, because it can be changed into a prime (47921431) 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, 4635 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (3532860).

Almost surely, 2^47921401 is an apocalyptic number.

It is an amenable number.

47921401 is a deficient number, since it is larger than the sum of its proper divisors (8604359).

47921401 is a wasteful number, since it uses less digits than its factorization.

47921401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 47921401 is about 6922.5285120395. The cubic root of 47921401 is about 363.2256437199.

The spelling of 47921401 in words is "forty-seven million, nine hundred twenty-one thousand, four hundred one".