1474636997 has 4 divisors (see below), whose sum is σ = 1498811436. Its totient is φ = 1450462560.

The previous prime is 1474636991. The next prime is 1474637023. The reversal of 1474636997 is 7996364741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7996364741 = 16871 ⋅473971.

It can be written as a sum of positive squares in 2 ways, for example, as 47761921 + 1426875076 = 6911^2 + 37774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1474636997 - 2⁴ = 1474636981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1474636991) 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 3 ways as a sum of consecutive naturals, for example, 12087128 + ... + 12087249.

It is an arithmetic number, because the mean of its divisors is an integer number (374702859).

Almost surely, 2^1474636997 is an apocalyptic number.

It is an amenable number.

1474636997 is a deficient number, since it is larger than the sum of its proper divisors (24174439).

1474636997 is an equidigital number, since it uses as much as digits as its factorization.

1474636997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24174438.

The product of its digits is 6858432, while the sum is 56.

The square root of 1474636997 is about 38401.0025520168. The cubic root of 1474636997 is about 1138.2256682981.

The spelling of 1474636997 in words is "one billion, four hundred seventy-four million, six hundred thirty-six thousand, nine hundred ninety-seven".