47491870 has 16 divisors (see below), whose sum is σ = 85578768. Its totient is φ = 18976000.

The previous prime is 47491861. The next prime is 47491883. The reversal of 47491870 is 7819474.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9870 + ... + 13870.

It is an arithmetic number, because the mean of its divisors is an integer number (5348673).

Almost surely, 2^47491870 is an apocalyptic number.

47491870 is a deficient number, since it is larger than the sum of its proper divisors (38086898).

47491870 is a wasteful number, since it uses less digits than its factorization.

47491870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 47491870 is about 6891.4345386139. The cubic root of 47491870 is about 362.1371589363.

The spelling of 47491870 in words is "forty-seven million, four hundred ninety-one thousand, eight hundred seventy".