61963111 has 8 divisors (see below), whose sum is σ = 73257120. Its totient is φ = 51279648.

The previous prime is 61963103. The next prime is 61963117. The reversal of 61963111 is 11136916.

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

It is not a de Polignac number, because 61963111 - 2³ = 61963103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61963111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61963117) 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 7 ways as a sum of consecutive naturals, for example, 152416 + ... + 152821.

It is an arithmetic number, because the mean of its divisors is an integer number (9157140).

Almost surely, 2^61963111 is an apocalyptic number.

61963111 is a deficient number, since it is larger than the sum of its proper divisors (11294009).

61963111 is a wasteful number, since it uses less digits than its factorization.

61963111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305273.

The product of its digits is 972, while the sum is 28.

The square root of 61963111 is about 7871.6650716351. The cubic root of 61963111 is about 395.7106493392.

The spelling of 61963111 in words is "sixty-one million, nine hundred sixty-three thousand, one hundred eleven".