61958291 has 8 divisors (see below), whose sum is σ = 62519184. Its totient is φ = 61400160.

The previous prime is 61958279. The next prime is 61958321. The reversal of 61958291 is 19285916.

It is a happy number.

61958291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61958291 - 2¹⁰ = 61957267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61958231) 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 7 ways as a sum of consecutive naturals, for example, 84161 + ... + 84893.

It is an arithmetic number, because the mean of its divisors is an integer number (7814898).

Almost surely, 2^61958291 is an apocalyptic number.

61958291 is a deficient number, since it is larger than the sum of its proper divisors (560893).

61958291 is a wasteful number, since it uses less digits than its factorization.

61958291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its digits is 38880, while the sum is 41.

The square root of 61958291 is about 7871.3589042808. The cubic root of 61958291 is about 395.7003885311.

The spelling of 61958291 in words is "sixty-one million, nine hundred fifty-eight thousand, two hundred ninety-one".