7561667 has 4 divisors (see below), whose sum is σ = 7567560. Its totient is φ = 7555776.

The previous prime is 7561633. The next prime is 7561681. The reversal of 7561667 is 7661657.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7561667 - 2¹⁰ = 7560643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7561667.

It is not an unprimeable number, because it can be changed into a prime (7561067) 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, 113 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^7561667 is an apocalyptic number.

7561667 is a deficient number, since it is larger than the sum of its proper divisors (5893).

7561667 is a wasteful number, since it uses less digits than its factorization.

7561667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892.

The product of its digits is 52920, while the sum is 38.

The square root of 7561667 is about 2749.8485412837. The cubic root of 7561667 is about 196.2784031267.

It can be divided in two parts, 7561 and 667, that added together give a palindrome (8228).

The spelling of 7561667 in words is "seven million, five hundred sixty-one thousand, six hundred sixty-seven".