76621003 has 4 divisors (see below), whose sum is σ = 76747840. Its totient is φ = 76494168.

The previous prime is 76621001. The next prime is 76621009. The reversal of 76621003 is 30012667.

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 76621003 - 2¹ = 76621001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76621001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62508 + ... + 63721.

It is an arithmetic number, because the mean of its divisors is an integer number (19186960).

Almost surely, 2^76621003 is an apocalyptic number.

76621003 is a deficient number, since it is larger than the sum of its proper divisors (126837).

76621003 is a wasteful number, since it uses less digits than its factorization.

76621003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126836.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 76621003 is about 8753.3423901959. The cubic root of 76621003 is about 424.7329404106.

The spelling of 76621003 in words is "seventy-six million, six hundred twenty-one thousand, three".