698750001 has 12 divisors (see below), whose sum is σ = 1012202100. Its totient is φ = 464496480.

The previous prime is 698749981. The next prime is 698750011. The reversal of 698750001 is 100057896.

It can be written as a sum of positive squares in 2 ways, for example, as 603979776 + 94770225 = 24576^2 + 9735^2 .

It is not a de Polignac number, because 698750001 - 2⁷ = 698749873 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (698750011) 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, 108090 + ... + 114371.

It is an arithmetic number, because the mean of its divisors is an integer number (84350175).

Almost surely, 2^698750001 is an apocalyptic number.

It is an amenable number.

698750001 is a deficient number, since it is larger than the sum of its proper divisors (313452099).

698750001 is a wasteful number, since it uses less digits than its factorization.

698750001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222816 (or 222813 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 698750001 is about 26433.8797946877. The cubic root of 698750001 is about 887.3751729749.

The spelling of 698750001 in words is "six hundred ninety-eight million, seven hundred fifty thousand, one".