7900387 has 8 divisors (see below), whose sum is σ = 8639280. Its totient is φ = 7164960.

The previous prime is 7900369. The next prime is 7900411. The reversal of 7900387 is 7830097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7900387 - 2¹¹ = 7898339 is a prime.

It is a super-2 number, since 2×7900387² = 124832229499538, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (7900337) 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, 7293 + ... + 8305.

It is an arithmetic number, because the mean of its divisors is an integer number (1079910).

Almost surely, 2^7900387 is an apocalyptic number.

7900387 is a deficient number, since it is larger than the sum of its proper divisors (738893).

7900387 is a wasteful number, since it uses less digits than its factorization.

7900387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 7900387 is about 2810.7627078784. The cubic root of 7900387 is about 199.1664222340.

The spelling of 7900387 in words is "seven million, nine hundred thousand, three hundred eighty-seven".