761613 has 4 divisors (see below), whose sum is σ = 1015488. Its totient is φ = 507740.

The previous prime is 761611. The next prime is 761623. The reversal of 761613 is 316167.

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: 316167 = 3 ⋅105389.

It is a cyclic number.

It is not a de Polignac number, because 761613 - 2¹ = 761611 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761611) 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, 126933 + ... + 126938.

It is an arithmetic number, because the mean of its divisors is an integer number (253872).

2⁷⁶¹⁶¹³ is an apocalyptic number.

It is an amenable number.

761613 is a deficient number, since it is larger than the sum of its proper divisors (253875).

761613 is a wasteful number, since it uses less digits than its factorization.

761613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253874.

The product of its digits is 756, while the sum is 24.

The square root of 761613 is about 872.7044173144. The cubic root of 761613 is about 91.3225681571.

The spelling of 761613 in words is "seven hundred sixty-one thousand, six hundred thirteen".