1499406917 has 2 divisors, whose sum is σ = 1499406918. Its totient is φ = 1499406916.

The previous prime is 1499406899. The next prime is 1499406971. The reversal of 1499406917 is 7196049941.

It is a happy number.

Together with next prime (1499406971) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1493126881 + 6280036 = 38641^2 + 2506^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499406917 - 2²² = 1495212613 is a prime.

It is a super-2 number, since 2×1499406917² = 4496442205494889778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1499406217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749703458 + 749703459.

It is an arithmetic number, because the mean of its divisors is an integer number (749703459).

Almost surely, 2^1499406917 is an apocalyptic number.

It is an amenable number.

1499406917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499406917 is an equidigital number, since it uses as much as digits as its factorization.

1499406917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1499406917 is about 38722.1760364781. The cubic root of 1499406917 is about 1144.5633536523.

The spelling of 1499406917 in words is "one billion, four hundred ninety-nine million, four hundred six thousand, nine hundred seventeen".