690754897 has 8 divisors (see below), whose sum is σ = 835871616. Its totient is φ = 557247552.

The previous prime is 690754879. The next prime is 690754901. The reversal of 690754897 is 798457096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690754897 - 2¹⁹ = 690230609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690754807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902213 + ... + 2902450.

It is an arithmetic number, because the mean of its divisors is an integer number (104483952).

Almost surely, 2^690754897 is an apocalyptic number.

It is an amenable number.

690754897 is a deficient number, since it is larger than the sum of its proper divisors (145116719).

690754897 is a wasteful number, since it uses less digits than its factorization.

690754897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804687.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 690754897 is about 26282.2163639218. The cubic root of 690754897 is about 883.9777303242.

The spelling of 690754897 in words is "six hundred ninety million, seven hundred fifty-four thousand, eight hundred ninety-seven".