764263 has 4 divisors (see below), whose sum is σ = 772240. Its totient is φ = 756288.

The previous prime is 764261. The next prime is 764273. The reversal of 764263 is 362467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 764263 - 2¹ = 764261 is a prime.

It is a Duffinian number.

764263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3843 + ... + 4036.

It is an arithmetic number, because the mean of its divisors is an integer number (193060).

2⁷⁶⁴²⁶³ is an apocalyptic number.

764263 is a deficient number, since it is larger than the sum of its proper divisors (7977).

764263 is an equidigital number, since it uses as much as digits as its factorization.

764263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976.

The product of its digits is 6048, while the sum is 28.

The square root of 764263 is about 874.2213678468. The cubic root of 764263 is about 91.4283632110.

The spelling of 764263 in words is "seven hundred sixty-four thousand, two hundred sixty-three".