84740897 has 4 divisors (see below), whose sum is σ = 85532976. Its totient is φ = 83948820.

The previous prime is 84740879. The next prime is 84740899. The reversal of 84740897 is 79804748.

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.

It is a cyclic number.

It is not a de Polignac number, because 84740897 - 2⁶ = 84740833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84740899) 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, 395879 + ... + 396092.

It is an arithmetic number, because the mean of its divisors is an integer number (21383244).

Almost surely, 2^84740897 is an apocalyptic number.

It is an amenable number.

84740897 is a deficient number, since it is larger than the sum of its proper divisors (792079).

84740897 is a wasteful number, since it uses less digits than its factorization.

84740897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792078.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 84740897 is about 9205.4818993902. The cubic root of 84740897 is about 439.2357549472.

The spelling of 84740897 in words is "eighty-four million, seven hundred forty thousand, eight hundred ninety-seven".