8461388 has 48 divisors (see below), whose sum is σ = 17122560. Its totient is φ = 3628800.

The previous prime is 8461379. The next prime is 8461391. The reversal of 8461388 is 8831648.

It is an Ulam number.

Its product of digits (36864) is a multiple of the sum of its prime divisors (256).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46658 + ... + 46838.

It is an arithmetic number, because the mean of its divisors is an integer number (356720).

Almost surely, 2^8461388 is an apocalyptic number.

It is an amenable number.

8461388 is an abundant number, since it is smaller than the sum of its proper divisors (8661172).

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

8461388 is a wasteful number, since it uses less digits than its factorization.

8461388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 8461388 is about 2908.8465067789. The cubic root of 8461388 is about 203.7732646851.

The spelling of 8461388 in words is "eight million, four hundred sixty-one thousand, three hundred eighty-eight".