47911790 has 16 divisors (see below), whose sum is σ = 86615568. Its totient is φ = 19081536.

The previous prime is 47911769. The next prime is 47911793. The reversal of 47911790 is 9711974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47911793) 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, 7952 + ... + 12611.

It is an arithmetic number, because the mean of its divisors is an integer number (5413473).

Almost surely, 2^47911790 is an apocalyptic number.

47911790 is a deficient number, since it is larger than the sum of its proper divisors (38703778).

47911790 is a wasteful number, since it uses less digits than its factorization.

47911790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20803.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 47911790 is about 6921.8342944627. The cubic root of 47911790 is about 363.2013595449.

The spelling of 47911790 in words is "forty-seven million, nine hundred eleven thousand, seven hundred ninety".