7661349 has 6 divisors (see below), whose sum is σ = 11066406. Its totient is φ = 5107560.

The previous prime is 7661347. The next prime is 7661393. The reversal of 7661349 is 9431667.

It can be written as a sum of positive squares in only one way, i.e., 6796449 + 864900 = 2607^2 + 930^2 .

It is not a de Polignac number, because 7661349 - 2¹ = 7661347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661347) 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 5 ways as a sum of consecutive naturals, for example, 425622 + ... + 425639.

It is an arithmetic number, because the mean of its divisors is an integer number (1844401).

Almost surely, 2^7661349 is an apocalyptic number.

It is an amenable number.

7661349 is a deficient number, since it is larger than the sum of its proper divisors (3405057).

7661349 is a wasteful number, since it uses less digits than its factorization.

7661349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851267 (or 851264 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 7661349 is about 2767.9141966470. The cubic root of 7661349 is about 197.1371235618.

It can be divided in two parts, 76 and 61349, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 7661349 in words is "seven million, six hundred sixty-one thousand, three hundred forty-nine".