102339947 has 8 divisors (see below), whose sum is σ = 108838800. Its totient is φ = 95952384.

The previous prime is 102339931. The next prime is 102339961. The reversal of 102339947 is 749933201.

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

It is a cyclic number.

It is not a de Polignac number, because 102339947 - 2⁴ = 102339931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102339947.

It is not an unprimeable number, because it can be changed into a prime (102339907) 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, 25922 + ... + 29607.

It is an arithmetic number, because the mean of its divisors is an integer number (13604850).

Almost surely, 2^102339947 is an apocalyptic number.

102339947 is a deficient number, since it is larger than the sum of its proper divisors (6498853).

102339947 is an equidigital number, since it uses as much as digits as its factorization.

102339947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55645.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 102339947 is about 10116.3208233033. The cubic root of 102339947 is about 467.7513639605.

The spelling of 102339947 in words is "one hundred two million, three hundred thirty-nine thousand, nine hundred forty-seven".