3648728767 has 8 divisors (see below), whose sum is σ = 3818049696. Its totient is φ = 3483129312.

The previous prime is 3648728761. The next prime is 3648728791. The reversal of 3648728767 is 7678278463.

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 3648728767 - 2¹⁹ = 3648204479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648728761) 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, 928363 + ... + 932284.

It is an arithmetic number, because the mean of its divisors is an integer number (477256212).

Almost surely, 2^3648728767 is an apocalyptic number.

3648728767 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3648728767 is a deficient number, since it is larger than the sum of its proper divisors (169320929).

3648728767 is a wasteful number, since it uses less digits than its factorization.

3648728767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860737.

The product of its digits is 18966528, while the sum is 58.

The square root of 3648728767 is about 60404.7081525935. The cubic root of 3648728767 is about 1539.5029552110.

The spelling of 3648728767 in words is "three billion, six hundred forty-eight million, seven hundred twenty-eight thousand, seven hundred sixty-seven".