39247961 has 8 divisors (see below), whose sum is σ = 40569984. Its totient is φ = 37946320.

The previous prime is 39247919. The next prime is 39247963. The reversal of 39247961 is 16974293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39247961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39247963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (5071248).

Almost surely, 2^39247961 is an apocalyptic number.

It is an amenable number.

39247961 is a deficient number, since it is larger than the sum of its proper divisors (1322023).

39247961 is a wasteful number, since it uses less digits than its factorization.

39247961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10191.

The product of its digits is 81648, while the sum is 41.

The square root of 39247961 is about 6264.8193110416. The cubic root of 39247961 is about 339.8383343302.

The spelling of 39247961 in words is "thirty-nine million, two hundred forty-seven thousand, nine hundred sixty-one".