47022761 has 4 divisors (see below), whose sum is σ = 47338500. Its totient is φ = 46707024.

The previous prime is 47022757. The next prime is 47022793. The reversal of 47022761 is 16722074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16722074 = 2 ⋅8361037.

It can be written as a sum of positive squares in 2 ways, for example, as 26265625 + 20757136 = 5125^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 47022761 - 2² = 47022757 is a prime.

It is a super-2 number, since 2×47022761² = 4422280104126242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47022061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157646 + ... + 157943.

It is an arithmetic number, because the mean of its divisors is an integer number (11834625).

Almost surely, 2^47022761 is an apocalyptic number.

It is an amenable number.

47022761 is a deficient number, since it is larger than the sum of its proper divisors (315739).

47022761 is a wasteful number, since it uses less digits than its factorization.

47022761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315738.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 47022761 is about 6857.3144160086. The cubic root of 47022761 is about 360.9408542794.

The spelling of 47022761 in words is "forty-seven million, twenty-two thousand, seven hundred sixty-one".