3689157047 has 2 divisors, whose sum is σ = 3689157048. Its totient is φ = 3689157046.

The previous prime is 3689156971. The next prime is 3689157049. The reversal of 3689157047 is 7407519863.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3689157047 is a prime.

Together with 3689157049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3689156986 and 3689157004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3689157049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844578523 + 1844578524.

It is an arithmetic number, because the mean of its divisors is an integer number (1844578524).

Almost surely, 2^3689157047 is an apocalyptic number.

3689157047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3689157047 is an equidigital number, since it uses as much as digits as its factorization.

3689157047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 3689157047 is about 60738.4313840916. The cubic root of 3689157047 is about 1545.1680321917.

The spelling of 3689157047 in words is "three billion, six hundred eighty-nine million, one hundred fifty-seven thousand, forty-seven".