61043997 has 8 divisors (see below), whose sum is σ = 93019456. Its totient is φ = 34882272.

The previous prime is 61043977. The next prime is 61043999. The reversal of 61043997 is 79934016.

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

It is not a de Polignac number, because 61043997 - 2⁶ = 61043933 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61043999) 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, 1453408 + ... + 1453449.

It is an arithmetic number, because the mean of its divisors is an integer number (11627432).

Almost surely, 2^61043997 is an apocalyptic number.

It is an amenable number.

61043997 is a deficient number, since it is larger than the sum of its proper divisors (31975459).

61043997 is a wasteful number, since it uses less digits than its factorization.

61043997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906867.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 61043997 is about 7813.0657875126. The cubic root of 61043997 is about 393.7443371320.

It can be divided in two parts, 6104 and 3997, that added together give a palindrome (10101).

The spelling of 61043997 in words is "sixty-one million, forty-three thousand, nine hundred ninety-seven".