61995494 has 32 divisors (see below), whose sum is σ = 103783680. Its totient is φ = 27540000.

The previous prime is 61995463. The next prime is 61995497. The reversal of 61995494 is 49459916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61995497) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 246869 + ... + 247119.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^61995494 is an apocalyptic number.

61995494 is a deficient number, since it is larger than the sum of its proper divisors (41788186).

61995494 is a wasteful number, since it uses less digits than its factorization.

61995494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476.

The product of its digits is 349920, while the sum is 47.

The square root of 61995494 is about 7873.7217375267. The cubic root of 61995494 is about 395.7795724241.

The spelling of 61995494 in words is "sixty-one million, nine hundred ninety-five thousand, four hundred ninety-four".