61073663 has 8 divisors (see below), whose sum is σ = 69920928. Its totient is φ = 52257024.

The previous prime is 61073653. The next prime is 61073687. The reversal of 61073663 is 36637016.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61073663 - 2⁶ = 61073599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61073653) 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, 3206 + ... + 11507.

It is an arithmetic number, because the mean of its divisors is an integer number (8740116).

Almost surely, 2^61073663 is an apocalyptic number.

61073663 is a deficient number, since it is larger than the sum of its proper divisors (8847265).

61073663 is a wasteful number, since it uses less digits than its factorization.

61073663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15313.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 61073663 is about 7814.9640434234. The cubic root of 61073663 is about 393.8081104124.

The spelling of 61073663 in words is "sixty-one million, seventy-three thousand, six hundred sixty-three".