764542 has 4 divisors (see below), whose sum is σ = 1146816. Its totient is φ = 382270.

The previous prime is 764539. The next prime is 764551. The reversal of 764542 is 245467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245467 = 41 ⋅5987.

It is a self number, because there is not a number n which added to its sum of digits gives 764542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191134 + ... + 191137.

It is an arithmetic number, because the mean of its divisors is an integer number (286704).

2⁷⁶⁴⁵⁴² is an apocalyptic number.

764542 is a deficient number, since it is larger than the sum of its proper divisors (382274).

764542 is a wasteful number, since it uses less digits than its factorization.

764542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382273.

The product of its digits is 6720, while the sum is 28.

The square root of 764542 is about 874.3809238541. The cubic root of 764542 is about 91.4394873964.

The spelling of 764542 in words is "seven hundred sixty-four thousand, five hundred forty-two".