763000421 has 8 divisors (see below), whose sum is σ = 786307704. Its totient is φ = 739834560.

The previous prime is 763000393. The next prime is 763000429. The reversal of 763000421 is 124000367.

It can be written as a sum of positive squares in 4 ways, for example, as 391050625 + 371949796 = 19775^2 + 19286^2 .

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 763000421 - 2²⁶ = 695891557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763000429) 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, 24350 + ... + 46031.

It is an arithmetic number, because the mean of its divisors is an integer number (98288463).

Almost surely, 2^763000421 is an apocalyptic number.

It is an amenable number.

763000421 is a deficient number, since it is larger than the sum of its proper divisors (23307283).

763000421 is a wasteful number, since it uses less digits than its factorization.

763000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70711.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 763000421 is about 27622.4622544769. The cubic root of 763000421 is about 913.7798824973.

Adding to 763000421 its reverse (124000367), we get a palindrome (887000788).

The spelling of 763000421 in words is "seven hundred sixty-three million, four hundred twenty-one", and thus it is an aban number.