747434 has 4 divisors (see below), whose sum is σ = 1121154. Its totient is φ = 373716.

The previous prime is 747427. The next prime is 747449. The reversal of 747434 is 434747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434747 = 61 ⋅7127.

It can be written as a sum of positive squares in only one way, i.e., 635209 + 112225 = 797^2 + 335^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 747397 and 747406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186857 + ... + 186860.

2⁷⁴⁷⁴³⁴ is an apocalyptic number.

747434 is a deficient number, since it is larger than the sum of its proper divisors (373720).

747434 is a wasteful number, since it uses less digits than its factorization.

747434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373719.

The product of its digits is 9408, while the sum is 29.

The square root of 747434 is about 864.5426536615. The cubic root of 747434 is about 90.7522949937.

It can be divided in two parts, 74743 and 4, that added together give a palindrome (74747).

The spelling of 747434 in words is "seven hundred forty-seven thousand, four hundred thirty-four".