698240961 has 12 divisors (see below), whose sum is σ = 1100258640. Its totient is φ = 423176280.

The previous prime is 698240957. The next prime is 698241073. The reversal of 698240961 is 169042896.

It is a happy number.

It is not a de Polignac number, because 698240961 - 2² = 698240957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (698240941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3526371 + ... + 3526568.

It is an arithmetic number, because the mean of its divisors is an integer number (91688220).

Almost surely, 2^698240961 is an apocalyptic number.

It is an amenable number.

698240961 is a deficient number, since it is larger than the sum of its proper divisors (402017679).

698240961 is a wasteful number, since it uses less digits than its factorization.

698240961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052956 (or 7052953 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 698240961 is about 26424.2494879230. The cubic root of 698240961 is about 887.1596360913.

The spelling of 698240961 in words is "six hundred ninety-eight million, two hundred forty thousand, nine hundred sixty-one".