61072379 has 2 divisors, whose sum is σ = 61072380. Its totient is φ = 61072378.

The previous prime is 61072367. The next prime is 61072393. The reversal of 61072379 is 97327016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61072379 - 2¹² = 61068283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61072339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536189 + 30536190.

It is an arithmetic number, because the mean of its divisors is an integer number (30536190).

Almost surely, 2^61072379 is an apocalyptic number.

61072379 is a deficient number, since it is larger than the sum of its proper divisors (1).

61072379 is an equidigital number, since it uses as much as digits as its factorization.

61072379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 61072379 is about 7814.8818929015. The cubic root of 61072379 is about 393.8053506131.

The spelling of 61072379 in words is "sixty-one million, seventy-two thousand, three hundred seventy-nine".