61893069 has 32 divisors (see below), whose sum is σ = 99287040. Its totient is φ = 33530112.

The previous prime is 61893061. The next prime is 61893109. The reversal of 61893069 is 96039816.

It is not a de Polignac number, because 61893069 - 2³ = 61893061 is a prime.

It is a super-2 number, since 2×61893069² = 7661503980477522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61893069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61893061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60837 + ... + 61845.

It is an arithmetic number, because the mean of its divisors is an integer number (3102720).

Almost surely, 2^61893069 is an apocalyptic number.

61893069 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

61893069 is a deficient number, since it is larger than the sum of its proper divisors (37393971).

61893069 is a wasteful number, since it uses less digits than its factorization.

61893069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 61893069 is about 7867.2148184729. The cubic root of 61893069 is about 395.5614916938.

The spelling of 61893069 in words is "sixty-one million, eight hundred ninety-three thousand, sixty-nine".