7650987 has 4 divisors (see below), whose sum is σ = 10201320. Its totient is φ = 5100656.

The previous prime is 7650961. The next prime is 7651009. The reversal of 7650987 is 7890567.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7650987 - 2¹¹ = 7648939 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (7650917) 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, 1275162 + ... + 1275167.

It is an arithmetic number, because the mean of its divisors is an integer number (2550330).

Almost surely, 2^7650987 is an apocalyptic number.

7650987 is a deficient number, since it is larger than the sum of its proper divisors (2550333).

7650987 is a wasteful number, since it uses less digits than its factorization.

7650987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550332.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 7650987 is about 2766.0417567347. The cubic root of 7650987 is about 197.0482072581.

The spelling of 7650987 in words is "seven million, six hundred fifty thousand, nine hundred eighty-seven".