742655 has 4 divisors (see below), whose sum is σ = 891192. Its totient is φ = 594120.

The previous prime is 742619. The next prime is 742657. The reversal of 742655 is 556247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556247 = 41 ⋅13567.

It is not a de Polignac number, because 742655 - 2⁶ = 742591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742657) 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, 74261 + ... + 74270.

It is an arithmetic number, because the mean of its divisors is an integer number (222798).

2⁷⁴²⁶⁵⁵ is an apocalyptic number.

742655 is a deficient number, since it is larger than the sum of its proper divisors (148537).

742655 is a wasteful number, since it uses less digits than its factorization.

742655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148536.

The product of its digits is 8400, while the sum is 29.

The square root of 742655 is about 861.7743324096. The cubic root of 742655 is about 90.5584616618.

The spelling of 742655 in words is "seven hundred forty-two thousand, six hundred fifty-five".