926645421 has 12 divisors (see below), whose sum is σ = 1337879328. Its totient is φ = 570243024.

The previous prime is 926645417. The next prime is 926645437. The reversal of 926645421 is 124546629.

It is a happy number.

It is not a de Polignac number, because 926645421 - 2² = 926645417 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 926645421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (926645221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 913345 + ... + 914358.

It is an arithmetic number, because the mean of its divisors is an integer number (111489944).

Almost surely, 2^926645421 is an apocalyptic number.

It is an amenable number.

926645421 is a deficient number, since it is larger than the sum of its proper divisors (411233907).

926645421 is a wasteful number, since it uses less digits than its factorization.

926645421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827732 (or 1827719 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 926645421 is about 30440.8511871794. The cubic root of 926645421 is about 974.9249720044.

The spelling of 926645421 in words is "nine hundred twenty-six million, six hundred forty-five thousand, four hundred twenty-one".