47621994 has 16 divisors (see below), whose sum is σ = 108850368. Its totient is φ = 13606272.

The previous prime is 47621993. The next prime is 47622007. The reversal of 47621994 is 49912674.

It is a super-3 number, since 3×47621994³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1133857 = 47621994 / (4 + 7 + 6 + 2 + 1 + 9 + 9 + 4).

It is not an unprimeable number, because it can be changed into a prime (47621993) 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, 566887 + ... + 566970.

It is an arithmetic number, because the mean of its divisors is an integer number (6803148).

Almost surely, 2^47621994 is an apocalyptic number.

47621994 is an abundant number, since it is smaller than the sum of its proper divisors (61228374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47621994 is a wasteful number, since it uses less digits than its factorization.

47621994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133869.

The product of its digits is 108864, while the sum is 42.

The square root of 47621994 is about 6900.8690757034. The cubic root of 47621994 is about 362.4675997994.

The spelling of 47621994 in words is "forty-seven million, six hundred twenty-one thousand, nine hundred ninety-four".