47946388 has 12 divisors (see below), whose sum is σ = 95892832. Its totient is φ = 20548440.

The previous prime is 47946373. The next prime is 47946389. The reversal of 47946388 is 88364974.

47946388 is an admirable number.

It is a super-2 number, since 2×47946388² = 4597712244493088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47946389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856158 + ... + 856213.

Almost surely, 2^47946388 is an apocalyptic number.

It is an amenable number.

47946388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47946388 is a wasteful number, since it uses less digits than its factorization.

47946388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712382 (or 1712380 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 47946388 is about 6924.3330364736. Note that the first 3 decimals coincide. The cubic root of 47946388 is about 363.2887633420.

The spelling of 47946388 in words is "forty-seven million, nine hundred forty-six thousand, three hundred eighty-eight".