61764403 has 4 divisors (see below), whose sum is σ = 63894240. Its totient is φ = 59634568.

The previous prime is 61764401. The next prime is 61764413. The reversal of 61764403 is 30446716.

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

It is a cyclic number.

It is not a de Polignac number, because 61764403 - 2¹ = 61764401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61764401) 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, 1064875 + ... + 1064932.

It is an arithmetic number, because the mean of its divisors is an integer number (15973560).

Almost surely, 2^61764403 is an apocalyptic number.

61764403 is a deficient number, since it is larger than the sum of its proper divisors (2129837).

61764403 is a wasteful number, since it uses less digits than its factorization.

61764403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129836.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 61764403 is about 7859.0332102619. The cubic root of 61764403 is about 395.2871980650.

The spelling of 61764403 in words is "sixty-one million, seven hundred sixty-four thousand, four hundred three".