7661461 has 4 divisors (see below), whose sum is σ = 7994592. Its totient is φ = 7328332.

The previous prime is 7661411. The next prime is 7661471. The reversal of 7661461 is 1641667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1641667 = 31 ⋅52957.

It is a cyclic number.

It is not a de Polignac number, because 7661461 - 2⁷ = 7661333 is a prime.

It is a super-3 number, since 3×7661461³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

7661461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661411) 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, 166531 + ... + 166576.

It is an arithmetic number, because the mean of its divisors is an integer number (1998648).

Almost surely, 2^7661461 is an apocalyptic number.

It is an amenable number.

7661461 is a deficient number, since it is larger than the sum of its proper divisors (333131).

7661461 is a wasteful number, since it uses less digits than its factorization.

7661461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333130.

The product of its digits is 6048, while the sum is 31.

The square root of 7661461 is about 2767.9344284141. The cubic root of 7661461 is about 197.1380841955.

The spelling of 7661461 in words is "seven million, six hundred sixty-one thousand, four hundred sixty-one".