7609381 has 4 divisors (see below), whose sum is σ = 8194732. Its totient is φ = 7024032.

The previous prime is 7609373. The next prime is 7609417. The reversal of 7609381 is 1839067.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3744225 + 3865156 = 1935^2 + 1966^2 .

It is a cyclic number.

It is not a de Polignac number, because 7609381 - 2³ = 7609373 is a prime.

It is a super-2 number, since 2×7609381² = 115805358406322, which contains 22 as substring.

It is an Ulam number.

7609381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7609321) 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, 292656 + ... + 292681.

It is an arithmetic number, because the mean of its divisors is an integer number (2048683).

Almost surely, 2^7609381 is an apocalyptic number.

It is an amenable number.

7609381 is a deficient number, since it is larger than the sum of its proper divisors (585351).

7609381 is a wasteful number, since it uses less digits than its factorization.

7609381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585350.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7609381 is about 2758.5106488828. The cubic root of 7609381 is about 196.6903757046.

The spelling of 7609381 in words is "seven million, six hundred nine thousand, three hundred eighty-one".