47762778 has 16 divisors (see below), whose sum is σ = 109172160. Its totient is φ = 13646496.

The previous prime is 47762777. The next prime is 47762779. The reversal of 47762778 is 87726774.

It is an interprime number because it is at equal distance from previous prime (47762777) and next prime (47762779).

It is not an unprimeable number, because it can be changed into a prime (47762773) 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, 568563 + ... + 568646.

It is an arithmetic number, because the mean of its divisors is an integer number (6823260).

Almost surely, 2^47762778 is an apocalyptic number.

47762778 is an abundant number, since it is smaller than the sum of its proper divisors (61409382).

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

47762778 is a wasteful number, since it uses less digits than its factorization.

47762778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137221.

The product of its digits is 921984, while the sum is 48.

The square root of 47762778 is about 6911.0620023264. The cubic root of 47762778 is about 362.8244337657.

The spelling of 47762778 in words is "forty-seven million, seven hundred sixty-two thousand, seven hundred seventy-eight".