78749003 has 2 divisors, whose sum is σ = 78749004. Its totient is φ = 78749002.

The previous prime is 78748997. The next prime is 78749023. The reversal of 78749003 is 30094787.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78749003 is a prime.

It is not a weakly prime, because it can be changed into another prime (78749023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39374501 + 39374502.

It is an arithmetic number, because the mean of its divisors is an integer number (39374502).

Almost surely, 2^78749003 is an apocalyptic number.

78749003 is a deficient number, since it is larger than the sum of its proper divisors (1).

78749003 is an equidigital number, since it uses as much as digits as its factorization.

78749003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78749003 is about 8874.0634998855. The cubic root of 78749003 is about 428.6291352401.

The spelling of 78749003 in words is "seventy-eight million, seven hundred forty-nine thousand, three".