925978513 has 8 divisors (see below), whose sum is σ = 939209600. Its totient is φ = 912785328.

The previous prime is 925978507. The next prime is 925978519. The reversal of 925978513 is 315879529.

It is an interprime number because it is at equal distance from previous prime (925978507) and next prime (925978519).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 925978513 - 2²⁹ = 389107601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (925978519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41683 + ... + 59911.

It is an arithmetic number, because the mean of its divisors is an integer number (117401200).

Almost surely, 2^925978513 is an apocalyptic number.

It is an amenable number.

925978513 is a deficient number, since it is larger than the sum of its proper divisors (13231087).

925978513 is a wasteful number, since it uses less digits than its factorization.

925978513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18951.

The product of its digits is 680400, while the sum is 49.

The square root of 925978513 is about 30429.8950540418. The cubic root of 925978513 is about 974.6910309195.

The spelling of 925978513 in words is "nine hundred twenty-five million, nine hundred seventy-eight thousand, five hundred thirteen".