7561489 has 16 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 6511680.

The previous prime is 7561483. The next prime is 7561517. The reversal of 7561489 is 9841657.

It is a cyclic number.

It is not a de Polignac number, because 7561489 - 2⁷ = 7561361 is a prime.

It is a super-2 number, since 2×7561489² = 114352231794242, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (60480) is a multiple of the sum of its prime divisors (720).

It is not an unprimeable number, because it can be changed into a prime (7561483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11364 + ... + 12010.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

Almost surely, 2^7561489 is an apocalyptic number.

It is an amenable number.

7561489 is a deficient number, since it is larger than the sum of its proper divisors (1147631).

7561489 is a wasteful number, since it uses less digits than its factorization.

7561489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its digits is 60480, while the sum is 40.

The square root of 7561489 is about 2749.8161756743. The cubic root of 7561489 is about 196.2768629976.

The spelling of 7561489 in words is "seven million, five hundred sixty-one thousand, four hundred eighty-nine".