7900385 has 8 divisors (see below), whose sum is σ = 9892800. Its totient is φ = 6045424.

The previous prime is 7900369. The next prime is 7900411. The reversal of 7900385 is 5830097.

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 7900385 - 2⁴ = 7900369 is a prime.

It is a super-3 number, since 3×7900385³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34235 + ... + 34464.

It is an arithmetic number, because the mean of its divisors is an integer number (1236600).

Almost surely, 2^7900385 is an apocalyptic number.

It is an amenable number.

7900385 is a deficient number, since it is larger than the sum of its proper divisors (1992415).

7900385 is a wasteful number, since it uses less digits than its factorization.

7900385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68727.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 7900385 is about 2810.7623521031. The cubic root of 7900385 is about 199.1664054275.

The spelling of 7900385 in words is "seven million, nine hundred thousand, three hundred eighty-five".