2647415923 has 2 divisors, whose sum is σ = 2647415924. Its totient is φ = 2647415922.

The previous prime is 2647415861. The next prime is 2647415941. The reversal of 2647415923 is 3295147462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2647415923 is a prime.

It is a super-2 number, since 2×2647415923² = 14017622138707883858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2647415923.

It is not a weakly prime, because it can be changed into another prime (2647415993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323707961 + 1323707962.

It is an arithmetic number, because the mean of its divisors is an integer number (1323707962).

Almost surely, 2^2647415923 is an apocalyptic number.

2647415923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647415923 is an equidigital number, since it uses as much as digits as its factorization.

2647415923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 2647415923 is about 51453.0458087760. The cubic root of 2647415923 is about 1383.3775565030.

The spelling of 2647415923 in words is "two billion, six hundred forty-seven million, four hundred fifteen thousand, nine hundred twenty-three".