47901481 has 4 divisors (see below), whose sum is σ = 47996100. Its totient is φ = 47806864.

The previous prime is 47901473. The next prime is 47901487. The reversal of 47901481 is 18410974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18410974 = 2 ⋅9205487.

It can be written as a sum of positive squares in 2 ways, for example, as 16362025 + 31539456 = 4045^2 + 5616^2 .

It is a cyclic number.

It is not a de Polignac number, because 47901481 - 2³ = 47901473 is a prime.

It is a super-2 number, since 2×47901481² = 4589103763986722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47901487) 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, 46546 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (11999025).

Almost surely, 2^47901481 is an apocalyptic number.

It is an amenable number.

47901481 is a deficient number, since it is larger than the sum of its proper divisors (94619).

47901481 is an equidigital number, since it uses as much as digits as its factorization.

47901481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94618.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 47901481 is about 6921.0895818505. The cubic root of 47901481 is about 363.1753081186.

The spelling of 47901481 in words is "forty-seven million, nine hundred one thousand, four hundred eighty-one".