3690401623 has 2 divisors, whose sum is σ = 3690401624. Its totient is φ = 3690401622.

The previous prime is 3690401621. The next prime is 3690401657. The reversal of 3690401623 is 3261040963.

It is a happy number.

It is an a-pointer prime, because the next prime (3690401657) can be obtained adding 3690401623 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3690401623 - 2¹ = 3690401621 is a prime.

Together with 3690401621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3690401621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1845200811 + 1845200812.

It is an arithmetic number, because the mean of its divisors is an integer number (1845200812).

Almost surely, 2^3690401623 is an apocalyptic number.

3690401623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3690401623 is an equidigital number, since it uses as much as digits as its factorization.

3690401623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3690401623 is about 60748.6758950349. The cubic root of 3690401623 is about 1545.3417722275.

The spelling of 3690401623 in words is "three billion, six hundred ninety million, four hundred one thousand, six hundred twenty-three".