764140403 has 4 divisors (see below), whose sum is σ = 822920448. Its totient is φ = 705360360.

The previous prime is 764140381. The next prime is 764140409. The reversal of 764140403 is 304041467.

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 764140403 - 2¹⁰ = 764139379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764140409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29390003 + ... + 29390028.

It is an arithmetic number, because the mean of its divisors is an integer number (205730112).

Almost surely, 2^764140403 is an apocalyptic number.

764140403 is a deficient number, since it is larger than the sum of its proper divisors (58780045).

764140403 is a wasteful number, since it uses less digits than its factorization.

764140403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58780044.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 764140403 is about 27643.0896066268. The cubic root of 764140403 is about 914.2347421232.

The spelling of 764140403 in words is "seven hundred sixty-four million, one hundred forty thousand, four hundred three".