61765238 has 16 divisors (see below), whose sum is σ = 99601920. Its totient is φ = 28633896.

The previous prime is 61765201. The next prime is 61765259. The reversal of 61765238 is 83256716.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506 + ... + 19077.

It is an arithmetic number, because the mean of its divisors is an integer number (6225120).

Almost surely, 2^61765238 is an apocalyptic number.

61765238 is a deficient number, since it is larger than the sum of its proper divisors (37836682).

61765238 is a wasteful number, since it uses less digits than its factorization.

61765238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34651.

The product of its digits is 60480, while the sum is 38.

The square root of 61765238 is about 7859.0863336650. The cubic root of 61765238 is about 395.2889793679.

The spelling of 61765238 in words is "sixty-one million, seven hundred sixty-five thousand, two hundred thirty-eight".