742567 has 8 divisors (see below), whose sum is σ = 868736. Its totient is φ = 621432.

The previous prime is 742559. The next prime is 742579. The reversal of 742567 is 765247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 742567 - 2³ = 742559 is a prime.

It is a Duffinian number.

742567 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (108592).

2⁷⁴²⁵⁶⁷ is an apocalyptic number.

742567 is a deficient number, since it is larger than the sum of its proper divisors (126169).

742567 is a wasteful number, since it uses less digits than its factorization.

742567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517.

The product of its digits is 11760, while the sum is 31.

The square root of 742567 is about 861.7232734469. The cubic root of 742567 is about 90.5548846490.

The spelling of 742567 in words is "seven hundred forty-two thousand, five hundred sixty-seven".