61386337 has 4 divisors (see below), whose sum is σ = 64997316. Its totient is φ = 57775360.

The previous prime is 61386329. The next prime is 61386343. The reversal of 61386337 is 73368316.

61386337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57289761 + 4096576 = 7569^2 + 2024^2 .

It is a cyclic number.

It is not a de Polignac number, because 61386337 - 2³ = 61386329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61386296 and 61386305.

It is not an unprimeable number, because it can be changed into a prime (61386937) 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, 1805464 + ... + 1805497.

It is an arithmetic number, because the mean of its divisors is an integer number (16249329).

Almost surely, 2^61386337 is an apocalyptic number.

It is an amenable number.

61386337 is a deficient number, since it is larger than the sum of its proper divisors (3610979).

61386337 is a wasteful number, since it uses less digits than its factorization.

61386337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610978.

The product of its digits is 54432, while the sum is 37.

The square root of 61386337 is about 7834.9433310012. The cubic root of 61386337 is about 394.4790161915.

The spelling of 61386337 in words is "sixty-one million, three hundred eighty-six thousand, three hundred thirty-seven".