623198701 has 4 divisors (see below), whose sum is σ = 624551004. Its totient is φ = 621846400.

The previous prime is 623198687. The next prime is 623198749. The reversal of 623198701 is 107891326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 451562500 + 171636201 = 21250^2 + 13101^2 .

It is a cyclic number.

It is not a de Polignac number, because 623198701 - 2⁷ = 623198573 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 (623198761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675460 + ... + 676381.

It is an arithmetic number, because the mean of its divisors is an integer number (156137751).

Almost surely, 2^623198701 is an apocalyptic number.

It is an amenable number.

623198701 is a deficient number, since it is larger than the sum of its proper divisors (1352303).

623198701 is a wasteful number, since it uses less digits than its factorization.

623198701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352302.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 623198701 is about 24963.9480251021. The cubic root of 623198701 is about 854.1658021878.

The spelling of 623198701 in words is "six hundred twenty-three million, one hundred ninety-eight thousand, seven hundred one".