47442865 has 8 divisors (see below), whose sum is σ = 58768128. Its totient is φ = 36729840.

The previous prime is 47442851. The next prime is 47442887. The reversal of 47442865 is 56824474.

47442865 = T₁₇₃₄ + T₁₇₃₅ + ... + T₁₇₆₄.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47442865 - 2⁷ = 47442737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152887 + ... + 153196.

It is an arithmetic number, because the mean of its divisors is an integer number (7346016).

Almost surely, 2^47442865 is an apocalyptic number.

It is an amenable number.

47442865 is a deficient number, since it is larger than the sum of its proper divisors (11325263).

47442865 is a wasteful number, since it uses less digits than its factorization.

47442865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306119.

The product of its digits is 215040, while the sum is 40.

The square root of 47442865 is about 6887.8781202922. The cubic root of 47442865 is about 362.0125576873.

The spelling of 47442865 in words is "forty-seven million, four hundred forty-two thousand, eight hundred sixty-five".