61432383 has 4 divisors (see below), whose sum is σ = 81909848. Its totient is φ = 40954920.

The previous prime is 61432369. The next prime is 61432409. The reversal of 61432383 is 38323416.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61432383 - 2¹² = 61428287 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 61432383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61432303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238728 + ... + 10238733.

It is an arithmetic number, because the mean of its divisors is an integer number (20477462).

Almost surely, 2^61432383 is an apocalyptic number.

61432383 is a deficient number, since it is larger than the sum of its proper divisors (20477465).

61432383 is a wasteful number, since it uses less digits than its factorization.

61432383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20477464.

The product of its digits is 10368, while the sum is 30.

The square root of 61432383 is about 7837.8812825916. The cubic root of 61432383 is about 394.5776246761.

Adding to 61432383 its reverse (38323416), we get a palindrome (99755799).

The spelling of 61432383 in words is "sixty-one million, four hundred thirty-two thousand, three hundred eighty-three".