47345720 has 32 divisors (see below), whose sum is σ = 112136400. Its totient is φ = 17941248.

The previous prime is 47345717. The next prime is 47345723. The reversal of 47345720 is 2754374.

It is an interprime number because it is at equal distance from previous prime (47345717) and next prime (47345723).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47345723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30389 + ... + 31908.

Almost surely, 2^47345720 is an apocalyptic number.

47345720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47345720 is an abundant number, since it is smaller than the sum of its proper divisors (64790680).

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

47345720 is a wasteful number, since it uses less digits than its factorization.

47345720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62327 (or 62323 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 47345720 is about 6880.8226252389. The cubic root of 47345720 is about 361.7653006928.

The spelling of 47345720 in words is "forty-seven million, three hundred forty-five thousand, seven hundred twenty".