61758383 has 2 divisors, whose sum is σ = 61758384. Its totient is φ = 61758382.

The previous prime is 61758373. The next prime is 61758397. The reversal of 61758383 is 38385716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61758383 - 2²² = 57564079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61758383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61758373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30879191 + 30879192.

It is an arithmetic number, because the mean of its divisors is an integer number (30879192).

Almost surely, 2^61758383 is an apocalyptic number.

61758383 is a deficient number, since it is larger than the sum of its proper divisors (1).

61758383 is an equidigital number, since it uses as much as digits as its factorization.

61758383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 61758383 is about 7858.6502021658. The cubic root of 61758383 is about 395.2743551429.

The spelling of 61758383 in words is "sixty-one million, seven hundred fifty-eight thousand, three hundred eighty-three".