766010421 has 24 divisors (see below), whose sum is σ = 1236493440. Its totient is φ = 452923200.

The previous prime is 766010419. The next prime is 766010449. The reversal of 766010421 is 124010667.

It is not a de Polignac number, because 766010421 - 2¹ = 766010419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766010411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90301 + ... + 98418.

It is an arithmetic number, because the mean of its divisors is an integer number (51520560).

Almost surely, 2^766010421 is an apocalyptic number.

It is an amenable number.

766010421 is a deficient number, since it is larger than the sum of its proper divisors (470483019).

766010421 is a wasteful number, since it uses less digits than its factorization.

766010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188777 (or 188774 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 766010421 is about 27676.8932685733. The cubic root of 766010421 is about 914.9799117690.

It can be divided in two parts, 7660 and 10421, that added together give a palindrome (18081).

The spelling of 766010421 in words is "seven hundred sixty-six million, ten thousand, four hundred twenty-one".