7122487 has 8 divisors (see below), whose sum is σ = 7398000. Its totient is φ = 6849024.

The previous prime is 7122469. The next prime is 7122491. The reversal of 7122487 is 7842217.

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 7122487 - 2¹⁹ = 6598199 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 (7122407) 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, 12748 + ... + 13294.

It is an arithmetic number, because the mean of its divisors is an integer number (924750).

Almost surely, 2^7122487 is an apocalyptic number.

7122487 is a deficient number, since it is larger than the sum of its proper divisors (275513).

7122487 is a wasteful number, since it uses less digits than its factorization.

7122487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its digits is 6272, while the sum is 31.

The square root of 7122487 is about 2668.7987934650. The cubic root of 7122487 is about 192.4024310186.

The spelling of 7122487 in words is "seven million, one hundred twenty-two thousand, four hundred eighty-seven".