47692457 has 2 divisors, whose sum is σ = 47692458. Its totient is φ = 47692456.

The previous prime is 47692453. The next prime is 47692459. The reversal of 47692457 is 75429674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 137641 = 6896^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 47692457 - 2² = 47692453 is a prime.

Together with 47692459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47692453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23846228 + 23846229.

It is an arithmetic number, because the mean of its divisors is an integer number (23846229).

Almost surely, 2^47692457 is an apocalyptic number.

It is an amenable number.

47692457 is a deficient number, since it is larger than the sum of its proper divisors (1).

47692457 is an equidigital number, since it uses as much as digits as its factorization.

47692457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 47692457 is about 6905.9725600382. The cubic root of 47692457 is about 362.6462845191.

The spelling of 47692457 in words is "forty-seven million, six hundred ninety-two thousand, four hundred fifty-seven".