61527379 has 4 divisors (see below), whose sum is σ = 61772760. Its totient is φ = 61282000.

The previous prime is 61527353. The next prime is 61527397. The reversal of 61527379 is 97372516.

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

It is a cyclic number.

It is not a de Polignac number, because 61527379 - 2⁹ = 61526867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61521379) 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, 122314 + ... + 122815.

It is an arithmetic number, because the mean of its divisors is an integer number (15443190).

Almost surely, 2^61527379 is an apocalyptic number.

61527379 is a deficient number, since it is larger than the sum of its proper divisors (245381).

61527379 is a wasteful number, since it uses less digits than its factorization.

61527379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245380.

The product of its digits is 79380, while the sum is 40.

The square root of 61527379 is about 7843.9389977230. The cubic root of 61527379 is about 394.7809050418.

It can be divided in two parts, 6152 and 7379, that added together give a palindrome (13531).

The spelling of 61527379 in words is "sixty-one million, five hundred twenty-seven thousand, three hundred seventy-nine".