47319261 has 16 divisors (see below), whose sum is σ = 68966208. Its totient is φ = 28620800.

The previous prime is 47319247. The next prime is 47319269. The reversal of 47319261 is 16291374.

It is a cyclic number.

It is not a de Polignac number, because 47319261 - 2¹⁵ = 47286493 is a prime.

It is a super-2 number, since 2×47319261² = 4478224923172242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47319269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20035 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (4310388).

Almost surely, 2^47319261 is an apocalyptic number.

It is an amenable number.

47319261 is a deficient number, since it is larger than the sum of its proper divisors (21646947).

47319261 is a wasteful number, since it uses less digits than its factorization.

47319261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892.

The product of its digits is 9072, while the sum is 33.

The square root of 47319261 is about 6878.8996939918. The cubic root of 47319261 is about 361.6978976855.

The spelling of 47319261 in words is "forty-seven million, three hundred nineteen thousand, two hundred sixty-one".