47769813 has 96 divisors (see below), whose sum is σ = 93090816. Its totient is φ = 22892544.

The previous prime is 47769803. The next prime is 47769823. The reversal of 47769813 is 31896774.

It is an interprime number because it is at equal distance from previous prime (47769803) and next prime (47769823).

It is not a de Polignac number, because 47769813 - 2⁹ = 47769301 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47769803) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 654345 + ... + 654417.

It is an arithmetic number, because the mean of its divisors is an integer number (969696).

Almost surely, 2^47769813 is an apocalyptic number.

It is an amenable number.

47769813 is a deficient number, since it is larger than the sum of its proper divisors (45321003).

47769813 is a wasteful number, since it uses less digits than its factorization.

47769813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 160 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 47769813 is about 6911.5709502254. The cubic root of 47769813 is about 362.8422464132.

The spelling of 47769813 in words is "forty-seven million, seven hundred sixty-nine thousand, eight hundred thirteen".