3400172687 has 2 divisors, whose sum is σ = 3400172688. Its totient is φ = 3400172686.

The previous prime is 3400172663. The next prime is 3400172689. The reversal of 3400172687 is 7862710043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3400172687 - 2⁶ = 3400172623 is a prime.

It is a super-2 number, since 2×3400172687² = 23122348602841599938, which contains 22 as substring.

Together with 3400172689, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3400172687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3400172689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700086343 + 1700086344.

It is an arithmetic number, because the mean of its divisors is an integer number (1700086344).

Almost surely, 2^3400172687 is an apocalyptic number.

3400172687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400172687 is an equidigital number, since it uses as much as digits as its factorization.

3400172687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 3400172687 is about 58310.9997084598. Note that the first 3 decimals coincide. The cubic root of 3400172687 is about 1503.7200534709.

The spelling of 3400172687 in words is "three billion, four hundred million, one hundred seventy-two thousand, six hundred eighty-seven".