345507733 has 4 divisors (see below), whose sum is σ = 345653100. Its totient is φ = 345362368.

The previous prime is 345507727. The next prime is 345507737. The reversal of 345507733 is 337705543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 337705543 = 7 ⋅48243649.

It can be written as a sum of positive squares in 2 ways, for example, as 274830084 + 70677649 = 16578^2 + 8407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345507733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345507692 and 345507701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345507737) 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, 69058 + ... + 73891.

It is an arithmetic number, because the mean of its divisors is an integer number (86413275).

Almost surely, 2^345507733 is an apocalyptic number.

It is an amenable number.

345507733 is a deficient number, since it is larger than the sum of its proper divisors (145367).

345507733 is a wasteful number, since it uses less digits than its factorization.

345507733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145366.

The product of its (nonzero) digits is 132300, while the sum is 37.

The square root of 345507733 is about 18587.8383089589. The cubic root of 345507733 is about 701.7018001439.

The spelling of 345507733 in words is "three hundred forty-five million, five hundred seven thousand, seven hundred thirty-three".