78241623 has 16 divisors (see below), whose sum is σ = 108298080. Its totient is φ = 50185856.

The previous prime is 78241577. The next prime is 78241651. The reversal of 78241623 is 32614287.

It is a cyclic number.

It is not a de Polignac number, because 78241623 - 2¹⁰ = 78240599 is a prime.

It is a super-2 number, since 2×78241623² = 12243503139348258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78241663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26161 + ... + 28997.

It is an arithmetic number, because the mean of its divisors is an integer number (6768630).

Almost surely, 2^78241623 is an apocalyptic number.

78241623 is a deficient number, since it is larger than the sum of its proper divisors (30056457).

78241623 is a wasteful number, since it uses less digits than its factorization.

78241623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186.

The product of its digits is 16128, while the sum is 33.

The square root of 78241623 is about 8845.4294977689. The cubic root of 78241623 is about 427.7065982703.

The spelling of 78241623 in words is "seventy-eight million, two hundred forty-one thousand, six hundred twenty-three".