1493923337 has 2 divisors, whose sum is σ = 1493923338. Its totient is φ = 1493923336.

The previous prime is 1493923309. The next prime is 1493923339. The reversal of 1493923337 is 7333293941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285294201 + 208629136 = 35851^2 + 14444^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493923337 - 2²⁸ = 1225487881 is a prime.

Together with 1493923339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1493923339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746961668 + 746961669.

It is an arithmetic number, because the mean of its divisors is an integer number (746961669).

Almost surely, 2^1493923337 is an apocalyptic number.

It is an amenable number.

1493923337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493923337 is an equidigital number, since it uses as much as digits as its factorization.

1493923337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 44.

The square root of 1493923337 is about 38651.3044669905. The cubic root of 1493923337 is about 1143.1663631957.

The spelling of 1493923337 in words is "one billion, four hundred ninety-three million, nine hundred twenty-three thousand, three hundred thirty-seven".