725978107 has 2 divisors, whose sum is σ = 725978108. Its totient is φ = 725978106.

The previous prime is 725978059. The next prime is 725978111. The reversal of 725978107 is 701879527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 725978107 - 2¹¹ = 725976059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725978117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362989053 + 362989054.

It is an arithmetic number, because the mean of its divisors is an integer number (362989054).

Almost surely, 2^725978107 is an apocalyptic number.

725978107 is a deficient number, since it is larger than the sum of its proper divisors (1).

725978107 is an equidigital number, since it uses as much as digits as its factorization.

725978107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 46.

The square root of 725978107 is about 26943.9809048329. The cubic root of 725978107 is about 898.7547003493.

The spelling of 725978107 in words is "seven hundred twenty-five million, nine hundred seventy-eight thousand, one hundred seven".