425973619 has 2 divisors, whose sum is σ = 425973620. Its totient is φ = 425973618.

The previous prime is 425973601. The next prime is 425973631. The reversal of 425973619 is 916379524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425973619 is a prime.

It is a super-2 number, since 2×425973619² = 362907048167914322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425973649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212986809 + 212986810.

It is an arithmetic number, because the mean of its divisors is an integer number (212986810).

Almost surely, 2^425973619 is an apocalyptic number.

425973619 is a deficient number, since it is larger than the sum of its proper divisors (1).

425973619 is an equidigital number, since it uses as much as digits as its factorization.

425973619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The square root of 425973619 is about 20639.1283488426. The cubic root of 425973619 is about 752.4209879403.

The spelling of 425973619 in words is "four hundred twenty-five million, nine hundred seventy-three thousand, six hundred nineteen".