699421641 has 8 divisors (see below), whose sum is σ = 932982624. Its totient is φ = 466070880.

The previous prime is 699421631. The next prime is 699421663. The reversal of 699421641 is 146124996.

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

It is not a de Polignac number, because 699421641 - 2⁵ = 699421609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 699421593 and 699421602.

It is not an unprimeable number, because it can be changed into a prime (699421631) 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, 44620 + ... + 58221.

It is an arithmetic number, because the mean of its divisors is an integer number (116622828).

Almost surely, 2^699421641 is an apocalyptic number.

It is an amenable number.

699421641 is a deficient number, since it is larger than the sum of its proper divisors (233560983).

699421641 is a wasteful number, since it uses less digits than its factorization.

699421641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105111.

The product of its digits is 93312, while the sum is 42.

The square root of 699421641 is about 26446.5808943236. The cubic root of 699421641 is about 887.6593975685.

The spelling of 699421641 in words is "six hundred ninety-nine million, four hundred twenty-one thousand, six hundred forty-one".