47091697 has 8 divisors (see below), whose sum is σ = 49646592. Its totient is φ = 44601600.

The previous prime is 47091691. The next prime is 47091721. The reversal of 47091697 is 79619074.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47091697 - 2³ = 47091689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47091691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14704 + ... + 17617.

It is an arithmetic number, because the mean of its divisors is an integer number (6205824).

Almost surely, 2^47091697 is an apocalyptic number.

47091697 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

47091697 is a deficient number, since it is larger than the sum of its proper divisors (2554895).

47091697 is a wasteful number, since it uses less digits than its factorization.

47091697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32399.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 47091697 is about 6862.3390327205. The cubic root of 47091697 is about 361.1171495392.

The spelling of 47091697 in words is "forty-seven million, ninety-one thousand, six hundred ninety-seven".