39028947 has 8 divisors (see below), whose sum is σ = 52076544. Its totient is φ = 26000328.

The previous prime is 39028943. The next prime is 39028949. The reversal of 39028947 is 74982093.

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

It is not a de Polignac number, because 39028947 - 2² = 39028943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39028899 and 39028908.

It is not an unprimeable number, because it can be changed into a prime (39028943) 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, 1078 + ... + 8900.

It is an arithmetic number, because the mean of its divisors is an integer number (6509568).

Almost surely, 2^39028947 is an apocalyptic number.

39028947 is a deficient number, since it is larger than the sum of its proper divisors (13047597).

39028947 is a wasteful number, since it uses less digits than its factorization.

39028947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 39028947 is about 6247.3151833408. The cubic root of 39028947 is about 339.2050256010.

The spelling of 39028947 in words is "thirty-nine million, twenty-eight thousand, nine hundred forty-seven".