742706 has 4 divisors (see below), whose sum is σ = 1114062. Its totient is φ = 371352.

The previous prime is 742699. The next prime is 742711. The reversal of 742706 is 607247.

742706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607247 = 89 ⋅6823.

It can be written as a sum of positive squares in only one way, i.e., 477481 + 265225 = 691^2 + 515^2 .

It is a super-2 number, since 2×742706² = 1103224404872, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185675 + ... + 185678.

2⁷⁴²⁷⁰⁶ is an apocalyptic number.

742706 is a deficient number, since it is larger than the sum of its proper divisors (371356).

742706 is a wasteful number, since it uses less digits than its factorization.

742706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371355.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 742706 is about 861.8039220147. The cubic root of 742706 is about 90.5605345740.

The spelling of 742706 in words is "seven hundred forty-two thousand, seven hundred six".