47619021 has 4 divisors (see below), whose sum is σ = 63492032. Its totient is φ = 31746012.

The previous prime is 47618981. The next prime is 47619049. The reversal of 47619021 is 12091674.

It is a happy number.

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 not a de Polignac number, because 47619021 - 2¹⁸ = 47356877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47619021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47619521) 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, 7936501 + ... + 7936506.

It is an arithmetic number, because the mean of its divisors is an integer number (15873008).

Almost surely, 2^47619021 is an apocalyptic number.

It is an amenable number.

47619021 is a deficient number, since it is larger than the sum of its proper divisors (15873011).

47619021 is a wasteful number, since it uses less digits than its factorization.

47619021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873010.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 47619021 is about 6900.6536646900. The cubic root of 47619021 is about 362.4600567959.

The spelling of 47619021 in words is "forty-seven million, six hundred nineteen thousand, twenty-one".