7862561 has 16 divisors (see below), whose sum is σ = 9768960. Its totient is φ = 6175440.

The previous prime is 7862557. The next prime is 7862579. The reversal of 7862561 is 1652687.

It is a cyclic number.

It is not a de Polignac number, because 7862561 - 2² = 7862557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7862521) 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, 3170 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (610560).

Almost surely, 2^7862561 is an apocalyptic number.

It is an amenable number.

7862561 is a deficient number, since it is larger than the sum of its proper divisors (1906399).

7862561 is a wasteful number, since it uses less digits than its factorization.

7862561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its digits is 20160, while the sum is 35.

The square root of 7862561 is about 2804.0258558009. The cubic root of 7862561 is about 198.8480528270.

The spelling of 7862561 in words is "seven million, eight hundred sixty-two thousand, five hundred sixty-one".