47408690 has 32 divisors (see below), whose sum is σ = 98772480. Its totient is φ = 16046784.

The previous prime is 47408689. The next prime is 47408701. The reversal of 47408690 is 9680474.

It is a happy number.

47408690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47408690² = 4495167775032200, which contains 22 as substring.

47408690 is a modest number, since divided by 8690 gives 4740 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244 + ... + 9816.

It is an arithmetic number, because the mean of its divisors is an integer number (3086640).

Almost surely, 2^47408690 is an apocalyptic number.

47408690 is an abundant number, since it is smaller than the sum of its proper divisors (51363790).

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

47408690 is a wasteful number, since it uses less digits than its factorization.

47408690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8666.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 47408690 is about 6885.3968658313. The cubic root of 47408690 is about 361.9256127486.

The spelling of 47408690 in words is "forty-seven million, four hundred eight thousand, six hundred ninety".