742017 has 4 divisors (see below), whose sum is σ = 989360. Its totient is φ = 494676.

The previous prime is 742009. The next prime is 742031. The reversal of 742017 is 710247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710247 = 3 ⋅236749.

It is not a de Polignac number, because 742017 - 2³ = 742009 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 741984 and 742002.

It is not an unprimeable number, because it can be changed into a prime (742037) 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, 123667 + ... + 123672.

It is an arithmetic number, because the mean of its divisors is an integer number (247340).

2⁷⁴²⁰¹⁷ is an apocalyptic number.

It is an amenable number.

742017 is a deficient number, since it is larger than the sum of its proper divisors (247343).

742017 is a wasteful number, since it uses less digits than its factorization.

742017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247342.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 742017 is about 861.4040863613. The cubic root of 742017 is about 90.5325219135.

It can be divided in two parts, 7 and 42017, that added together give a palindrome (42024).

The spelling of 742017 in words is "seven hundred forty-two thousand, seventeen", and thus it is an iban number.