34739947 has 6 divisors (see below), whose sum is σ = 38185364. Its totient is φ = 31581660.

The previous prime is 34739917. The next prime is 34739951. The reversal of 34739947 is 74993743.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-34739947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34739897 and 34739906.

It is not an unprimeable number, because it can be changed into a prime (34739917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143433 + ... + 143674.

Almost surely, 2^34739947 is an apocalyptic number.

34739947 is a deficient number, since it is larger than the sum of its proper divisors (3445417).

34739947 is a wasteful number, since it uses less digits than its factorization.

34739947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287129 (or 287118 counting only the distinct ones).

The product of its digits is 571536, while the sum is 46.

The square root of 34739947 is about 5894.0603152665. The cubic root of 34739947 is about 326.2944727814.

The spelling of 34739947 in words is "thirty-four million, seven hundred thirty-nine thousand, nine hundred forty-seven".