745647803 has 2 divisors, whose sum is σ = 745647804. Its totient is φ = 745647802.

The previous prime is 745647767. The next prime is 745647823. The reversal of 745647803 is 308746547.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 745647803 - 2¹⁸ = 745385659 is a prime.

It is a super-2 number, since 2×745647803² = 1111981292237453618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745647823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372823901 + 372823902.

It is an arithmetic number, because the mean of its divisors is an integer number (372823902).

Almost surely, 2^745647803 is an apocalyptic number.

745647803 is a deficient number, since it is larger than the sum of its proper divisors (1).

745647803 is an equidigital number, since it uses as much as digits as its factorization.

745647803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 745647803 is about 27306.5523821664. The cubic root of 745647803 is about 906.7994489215.

The spelling of 745647803 in words is "seven hundred forty-five million, six hundred forty-seven thousand, eight hundred three".