61497383 has 4 divisors (see below), whose sum is σ = 61513368. Its totient is φ = 61481400.

The previous prime is 61497361. The next prime is 61497389. The reversal of 61497383 is 38379416.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61497383 - 2¹² = 61493287 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 61497383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61497389) 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, 1685 + ... + 11217.

It is an arithmetic number, because the mean of its divisors is an integer number (15378342).

Almost surely, 2^61497383 is an apocalyptic number.

61497383 is a deficient number, since it is larger than the sum of its proper divisors (15985).

61497383 is an equidigital number, since it uses as much as digits as its factorization.

61497383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15984.

The product of its digits is 108864, while the sum is 41.

The square root of 61497383 is about 7842.0267150782. The cubic root of 61497383 is about 394.7167397161.

The spelling of 61497383 in words is "sixty-one million, four hundred ninety-seven thousand, three hundred eighty-three".