47399994 has 12 divisors (see below), whose sum is σ = 102700026. Its totient is φ = 15799992.

The previous prime is 47399983. The next prime is 47399999. The reversal of 47399994 is 49999374.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 2442969 = 6705^2 + 1563^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47399994.

It is not an unprimeable number, because it can be changed into a prime (47399999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1316649 + ... + 1316684.

Almost surely, 2^47399994 is an apocalyptic number.

47399994 is an abundant number, since it is smaller than the sum of its proper divisors (55300032).

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

47399994 is a wasteful number, since it uses less digits than its factorization.

47399994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633341 (or 2633338 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 47399994 is about 6884.7653554787. The cubic root of 47399994 is about 361.9034825049.

The spelling of 47399994 in words is "forty-seven million, three hundred ninety-nine thousand, nine hundred ninety-four".