47772642 has 16 divisors (see below), whose sum is σ = 96697440. Its totient is φ = 15732192.

The previous prime is 47772623. The next prime is 47772649. The reversal of 47772642 is 24627774.

It is a self number, because there is not a number n which added to its sum of digits gives 47772642.

It is not an unprimeable number, because it can be changed into a prime (47772649) 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, 47467 + ... + 48462.

It is an arithmetic number, because the mean of its divisors is an integer number (6043590).

Almost surely, 2^47772642 is an apocalyptic number.

47772642 is an abundant number, since it is smaller than the sum of its proper divisors (48924798).

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

47772642 is a wasteful number, since it uses less digits than its factorization.

47772642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96017.

The product of its digits is 131712, while the sum is 39.

The square root of 47772642 is about 6911.7756039964. The cubic root of 47772642 is about 362.8494089592.

The spelling of 47772642 in words is "forty-seven million, seven hundred seventy-two thousand, six hundred forty-two".