690986067 has 8 divisors (see below), whose sum is σ = 922024896. Its totient is φ = 460302312.

The previous prime is 690986059. The next prime is 690986071. The reversal of 690986067 is 760689096.

It is a happy number.

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

It is not a de Polignac number, because 690986067 - 2³ = 690986059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690986077) 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, 84193 + ... + 92034.

It is an arithmetic number, because the mean of its divisors is an integer number (115253112).

Almost surely, 2^690986067 is an apocalyptic number.

690986067 is a deficient number, since it is larger than the sum of its proper divisors (231038829).

690986067 is a wasteful number, since it uses less digits than its factorization.

690986067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177537.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 690986067 is about 26286.6138367040. The cubic root of 690986067 is about 884.0763308269.

The spelling of 690986067 in words is "six hundred ninety million, nine hundred eighty-six thousand, sixty-seven".