7229987 has 4 divisors (see below), whose sum is σ = 7253400. Its totient is φ = 7206576.

The previous prime is 7229969. The next prime is 7230023. The reversal of 7229987 is 7899227.

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 7229987 - 2¹⁴ = 7213603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7229687) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11237 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (1813350).

Almost surely, 2^7229987 is an apocalyptic number.

7229987 is a deficient number, since it is larger than the sum of its proper divisors (23413).

7229987 is a wasteful number, since it uses less digits than its factorization.

7229987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23412.

The product of its digits is 127008, while the sum is 44.

The square root of 7229987 is about 2688.8635145727. The cubic root of 7229987 is about 193.3655808938.

The spelling of 7229987 in words is "seven million, two hundred twenty-nine thousand, nine hundred eighty-seven".