916894997 has 4 divisors (see below), whose sum is σ = 917097120. Its totient is φ = 916692876.

The previous prime is 916894981. The next prime is 916895003. The reversal of 916894997 is 799498619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799498619 = 199 ⋅4017581.

It is a cyclic number.

It is not a de Polignac number, because 916894997 - 2⁴ = 916894981 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 (916894907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94097 + ... + 103382.

It is an arithmetic number, because the mean of its divisors is an integer number (229274280).

Almost surely, 2^916894997 is an apocalyptic number.

It is an amenable number.

916894997 is a deficient number, since it is larger than the sum of its proper divisors (202123).

916894997 is a wasteful number, since it uses less digits than its factorization.

916894997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202122.

The product of its digits is 8817984, while the sum is 62.

The square root of 916894997 is about 30280.2740575445. The cubic root of 916894997 is about 971.4934294839.

The spelling of 916894997 in words is "nine hundred sixteen million, eight hundred ninety-four thousand, nine hundred ninety-seven".