690050845 has 8 divisors (see below), whose sum is σ = 903339360. Its totient is φ = 501855120.

The previous prime is 690050833. The next prime is 690050861. The reversal of 690050845 is 548050096.

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

It is not a de Polignac number, because 690050845 - 2¹¹ = 690048797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6273135 + ... + 6273244.

It is an arithmetic number, because the mean of its divisors is an integer number (112917420).

Almost surely, 2^690050845 is an apocalyptic number.

It is an amenable number.

690050845 is a deficient number, since it is larger than the sum of its proper divisors (213288515).

690050845 is a wasteful number, since it uses less digits than its factorization.

690050845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12546395.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 690050845 is about 26268.8188733335. The cubic root of 690050845 is about 883.6772967645.

The spelling of 690050845 in words is "six hundred ninety million, fifty thousand, eight hundred forty-five".