787925417 has 2 divisors, whose sum is σ = 787925418. Its totient is φ = 787925416.

The previous prime is 787925387. The next prime is 787925449. The reversal of 787925417 is 714529787.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 652342681 + 135582736 = 25541^2 + 11644^2 .

It is an emirp because it is prime and its reverse (714529787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 787925417 - 2²⁶ = 720816553 is a prime.

It is not a weakly prime, because it can be changed into another prime (787925477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393962708 + 393962709.

It is an arithmetic number, because the mean of its divisors is an integer number (393962709).

Almost surely, 2^787925417 is an apocalyptic number.

It is an amenable number.

787925417 is a deficient number, since it is larger than the sum of its proper divisors (1).

787925417 is an equidigital number, since it uses as much as digits as its factorization.

787925417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 50.

The square root of 787925417 is about 28070.0092091185. The cubic root of 787925417 is about 923.6236328941.

The spelling of 787925417 in words is "seven hundred eighty-seven million, nine hundred twenty-five thousand, four hundred seventeen".