7561427 has 4 divisors (see below), whose sum is σ = 7805376. Its totient is φ = 7317480.

The previous prime is 7561423. The next prime is 7561459. The reversal of 7561427 is 7241657.

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 7561427 - 2² = 7561423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7561393 and 7561402.

It is not an unprimeable number, because it can be changed into a prime (7561423) 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, 121928 + ... + 121989.

It is an arithmetic number, because the mean of its divisors is an integer number (1951344).

Almost surely, 2^7561427 is an apocalyptic number.

7561427 is a deficient number, since it is larger than the sum of its proper divisors (243949).

7561427 is a wasteful number, since it uses less digits than its factorization.

7561427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243948.

The product of its digits is 11760, while the sum is 32.

The square root of 7561427 is about 2749.8049021703. The cubic root of 7561427 is about 196.2763265424.

The spelling of 7561427 in words is "seven million, five hundred sixty-one thousand, four hundred twenty-seven".