102672409 has 8 divisors (see below), whose sum is σ = 123515840. Its totient is φ = 83372976.

The previous prime is 102672377. The next prime is 102672419. The reversal of 102672409 is 904276201.

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 102672409 - 2⁵ = 102672377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102672419) 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, 385854 + ... + 386119.

It is an arithmetic number, because the mean of its divisors is an integer number (15439480).

Almost surely, 2^102672409 is an apocalyptic number.

102672409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102672409 is a deficient number, since it is larger than the sum of its proper divisors (20843431).

102672409 is an equidigital number, since it uses as much as digits as its factorization.

102672409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771999.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 102672409 is about 10132.7394617645. The cubic root of 102672409 is about 468.2573295046.

The spelling of 102672409 in words is "one hundred two million, six hundred seventy-two thousand, four hundred nine".