102948979 has 4 divisors (see below), whose sum is σ = 117655984. Its totient is φ = 88241976.

The previous prime is 102948971. The next prime is 102949003. The reversal of 102948979 is 979849201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979849201 = 41 ⋅23898761.

It is a cyclic number.

It is not a de Polignac number, because 102948979 - 2³ = 102948971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102948971) 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, 7353492 + ... + 7353505.

It is an arithmetic number, because the mean of its divisors is an integer number (29413996).

Almost surely, 2^102948979 is an apocalyptic number.

102948979 is a deficient number, since it is larger than the sum of its proper divisors (14707005).

102948979 is an equidigital number, since it uses as much as digits as its factorization.

102948979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14707004.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 102948979 is about 10146.3776294794. The cubic root of 102948979 is about 468.6774028253.

The spelling of 102948979 in words is "one hundred two million, nine hundred forty-eight thousand, nine hundred seventy-nine".