7880385 has 8 divisors (see below), whose sum is σ = 12608640. Its totient is φ = 4202864.

The previous prime is 7880359. The next prime is 7880387. The reversal of 7880385 is 5830887.

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 7880385 - 2⁶ = 7880321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7880387) 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, 262665 + ... + 262694.

It is an arithmetic number, because the mean of its divisors is an integer number (1576080).

Almost surely, 2^7880385 is an apocalyptic number.

It is an amenable number.

7880385 is a deficient number, since it is larger than the sum of its proper divisors (4728255).

7880385 is a wasteful number, since it uses less digits than its factorization.

7880385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525367.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 7880385 is about 2807.2023439717. The cubic root of 7880385 is about 198.9981986824.

The spelling of 7880385 in words is "seven million, eight hundred eighty thousand, three hundred eighty-five".