7099887 has 4 divisors (see below), whose sum is σ = 9466520. Its totient is φ = 4733256.

The previous prime is 7099877. The next prime is 7099913. The reversal of 7099887 is 7889907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7889907 = 3 ⋅2629969.

It is not a de Polignac number, because 7099887 - 2⁴ = 7099871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7099817) 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, 1183312 + ... + 1183317.

It is an arithmetic number, because the mean of its divisors is an integer number (2366630).

Almost surely, 2^7099887 is an apocalyptic number.

7099887 is a deficient number, since it is larger than the sum of its proper divisors (2366633).

7099887 is a wasteful number, since it uses less digits than its factorization.

7099887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366632.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 7099887 is about 2664.5613147383. The cubic root of 7099887 is about 192.1987146209.

The spelling of 7099887 in words is "seven million, ninety-nine thousand, eight hundred eighty-seven".