7872901 has 4 divisors (see below), whose sum is σ = 8006400. Its totient is φ = 7739404.

The previous prime is 7872883. The next prime is 7872919. The reversal of 7872901 is 1092787.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1092787 = 151 ⋅7237.

It is an interprime number because it is at equal distance from previous prime (7872883) and next prime (7872919).

It is a cyclic number.

It is not a de Polignac number, because 7872901 - 2⁵ = 7872869 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872001) 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, 66661 + ... + 66778.

It is an arithmetic number, because the mean of its divisors is an integer number (2001600).

Almost surely, 2^7872901 is an apocalyptic number.

It is an amenable number.

7872901 is a deficient number, since it is larger than the sum of its proper divisors (133499).

7872901 is a wasteful number, since it uses less digits than its factorization.

7872901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133498.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 7872901 is about 2805.8690275920. The cubic root of 7872901 is about 198.9351825467.

The spelling of 7872901 in words is "seven million, eight hundred seventy-two thousand, nine hundred one".