61962891 has 8 divisors (see below), whose sum is σ = 83095440. Its totient is φ = 41069472.

The previous prime is 61962881. The next prime is 61962899. The reversal of 61962891 is 19826916.

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

It is not a de Polignac number, because 61962891 - 2¹⁵ = 61930123 is a prime.

It is a super-2 number, since 2×61962891² = 7678799722155762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61962899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59176 + ... + 60213.

It is an arithmetic number, because the mean of its divisors is an integer number (10386930).

Almost surely, 2^61962891 is an apocalyptic number.

61962891 is a deficient number, since it is larger than the sum of its proper divisors (21132549).

61962891 is a wasteful number, since it uses less digits than its factorization.

61962891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119565.

The product of its digits is 46656, while the sum is 42.

The square root of 61962891 is about 7871.6510974509. The cubic root of 61962891 is about 395.7101810152.

The spelling of 61962891 in words is "sixty-one million, nine hundred sixty-two thousand, eight hundred ninety-one".