966407421 has 8 divisors (see below), whose sum is σ = 1472620864. Its totient is φ = 552232800.

The previous prime is 966407359. The next prime is 966407437. The reversal of 966407421 is 124704669.

It is a happy number.

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

It is not a de Polignac number, because 966407421 - 2⁶ = 966407357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 966407421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966407441) 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, 23009680 + ... + 23009721.

It is an arithmetic number, because the mean of its divisors is an integer number (184077608).

Almost surely, 2^966407421 is an apocalyptic number.

It is an amenable number.

966407421 is a deficient number, since it is larger than the sum of its proper divisors (506213443).

966407421 is a wasteful number, since it uses less digits than its factorization.

966407421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46019411.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 966407421 is about 31087.0941228028. The cubic root of 966407421 is about 988.6746953452.

The spelling of 966407421 in words is "nine hundred sixty-six million, four hundred seven thousand, four hundred twenty-one".