47773994 has 4 divisors (see below), whose sum is σ = 71660994. Its totient is φ = 23886996.

The previous prime is 47773981. The next prime is 47774003. The reversal of 47773994 is 49937774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49937774 = 2 ⋅24968887.

It can be written as a sum of positive squares in only one way, i.e., 47265625 + 508369 = 6875^2 + 713^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11943497 + ... + 11943500.

Almost surely, 2^47773994 is an apocalyptic number.

47773994 is a deficient number, since it is larger than the sum of its proper divisors (23887000).

47773994 is a wasteful number, since it uses less digits than its factorization.

47773994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23886999.

The product of its digits is 1333584, while the sum is 50.

The square root of 47773994 is about 6911.8734074055. The cubic root of 47773994 is about 362.8528318930.

The spelling of 47773994 in words is "forty-seven million, seven hundred seventy-three thousand, nine hundred ninety-four".