47021001 has 4 divisors (see below), whose sum is σ = 62694672. Its totient is φ = 31347332.

The previous prime is 47020951. The next prime is 47021011. The reversal of 47021001 is 10012074.

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 47021001 - 2⁶ = 47020937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47021011) 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, 7836831 + ... + 7836836.

It is an arithmetic number, because the mean of its divisors is an integer number (15673668).

Almost surely, 2^47021001 is an apocalyptic number.

It is an amenable number.

47021001 is a deficient number, since it is larger than the sum of its proper divisors (15673671).

47021001 is a wasteful number, since it uses less digits than its factorization.

47021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15673670.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 47021001 is about 6857.1860846852. The cubic root of 47021001 is about 360.9363510430.

Adding to 47021001 its reverse (10012074), we get a palindrome (57033075).

The spelling of 47021001 in words is "forty-seven million, twenty-one thousand, one".