1002697947 has 36 divisors (see below), whose sum is σ = 1527087016. Its totient is φ = 658199520.

The previous prime is 1002697921. The next prime is 1002697981. The reversal of 1002697947 is 7497962001.

It is not a de Polignac number, because 1002697947 - 2⁷ = 1002697819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002690947) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 438447 + ... + 440727.

Almost surely, 2^1002697947 is an apocalyptic number.

1002697947 is a deficient number, since it is larger than the sum of its proper divisors (524389069).

1002697947 is an frugal number, since it uses more digits than its factorization.

1002697947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1002697947 is about 31665.4061556140. The cubic root of 1002697947 is about 1000.8985081081.

The spelling of 1002697947 in words is "one billion, two million, six hundred ninety-seven thousand, nine hundred forty-seven".