47465778 has 16 divisors (see below), whose sum is σ = 95096736. Its totient is φ = 15794400.

The previous prime is 47465729. The next prime is 47465797. The reversal of 47465778 is 87756474.

It is a super-2 number, since 2×47465778² = 4506000162290568, which contains 22 as substring.

It is an unprimeable number.

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, 2976 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (5943546).

Almost surely, 2^47465778 is an apocalyptic number.

47465778 is an abundant number, since it is smaller than the sum of its proper divisors (47630958).

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

47465778 is a wasteful number, since it uses less digits than its factorization.

47465778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769.

The product of its digits is 1317120, while the sum is 48.

The square root of 47465778 is about 6889.5412038829. The cubic root of 47465778 is about 362.0708274872.

The spelling of 47465778 in words is "forty-seven million, four hundred sixty-five thousand, seven hundred seventy-eight".