749505947 has 2 divisors, whose sum is σ = 749505948. Its totient is φ = 749505946.

The previous prime is 749505937. The next prime is 749505949.

749505947 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 749505947 - 2¹⁰ = 749504923 is a prime.

Together with 749505949, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_38678936 and since 749505947 and 38678936 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 749505895 and 749505904.

It is not a weakly prime, because it can be changed into another prime (749505949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374752973 + 374752974.

It is an arithmetic number, because the mean of its divisors is an integer number (374752974).

Almost surely, 2^749505947 is an apocalyptic number.

749505947 is a deficient number, since it is larger than the sum of its proper divisors (1).

749505947 is an equidigital number, since it uses as much as digits as its factorization.

749505947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 749505947 is about 27377.1062568709. The cubic root of 749505947 is about 908.3607517315.

The spelling of 749505947 in words is "seven hundred forty-nine million, five hundred five thousand, nine hundred forty-seven".