47829720 has 32 divisors (see below), whose sum is σ = 143489520. Its totient is φ = 12754560.

The previous prime is 47829697. The next prime is 47829737. The reversal of 47829720 is 2792874.

It is a zygodrome in base 9.

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, 199171 + ... + 199410.

Almost surely, 2^47829720 is an apocalyptic number.

47829720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47829720 is an abundant number, since it is smaller than the sum of its proper divisors (95659800).

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

47829720 is a wasteful number, since it uses less digits than its factorization.

47829720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398595 (or 398591 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47829720 is about 6915.9034117026. The cubic root of 47829720 is about 362.9938603641.

The spelling of 47829720 in words is "forty-seven million, eight hundred twenty-nine thousand, seven hundred twenty".