7661323 has 4 divisors (see below), whose sum is σ = 7994448. Its totient is φ = 7328200.

The previous prime is 7661321. The next prime is 7661333. The reversal of 7661323 is 3231667.

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 7661323 - 2¹ = 7661321 is a prime.

It is a super-2 number, since 2×7661323² = 117391740220658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7661291 and 7661300.

It is not an unprimeable number, because it can be changed into a prime (7661321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166528 + ... + 166573.

It is an arithmetic number, because the mean of its divisors is an integer number (1998612).

Almost surely, 2^7661323 is an apocalyptic number.

7661323 is a deficient number, since it is larger than the sum of its proper divisors (333125).

7661323 is a wasteful number, since it uses less digits than its factorization.

7661323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333124.

The product of its digits is 4536, while the sum is 28.

The square root of 7661323 is about 2767.9094999656. The cubic root of 7661323 is about 197.1369005562.

It can be divided in two parts, 76613 and 23, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 7661323 in words is "seven million, six hundred sixty-one thousand, three hundred twenty-three".