47491000 has 32 divisors (see below), whose sum is σ = 111131280. Its totient is φ = 18996000.

The previous prime is 47490941. The next prime is 47491019. The reversal of 47491000 is 19474.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 22746 + ... + 24745.

Almost surely, 2^47491000 is an apocalyptic number.

47491000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47491000 is an abundant number, since it is smaller than the sum of its proper divisors (63640280).

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

47491000 is a wasteful number, since it uses less digits than its factorization.

47491000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47512 (or 47498 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 47491000 is about 6891.3714164889. The cubic root of 47491000 is about 362.1349476017.

The spelling of 47491000 in words is "forty-seven million, four hundred ninety-one thousand".