690268741 has 8 divisors (see below), whose sum is σ = 710470400. Its totient is φ = 670353840.

The previous prime is 690268729. The next prime is 690268751. The reversal of 690268741 is 147862096.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690268741 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 (690268721) 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, 66801 + ... + 76438.

It is an arithmetic number, because the mean of its divisors is an integer number (88808800).

Almost surely, 2^690268741 is an apocalyptic number.

690268741 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

690268741 is a deficient number, since it is larger than the sum of its proper divisors (20201659).

690268741 is a wasteful number, since it uses less digits than its factorization.

690268741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143379.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 690268741 is about 26272.9659726495. The cubic root of 690268741 is about 883.7702993243.

The spelling of 690268741 in words is "six hundred ninety million, two hundred sixty-eight thousand, seven hundred forty-one".