695057421 has 8 divisors (see below), whose sum is σ = 931136224. Its totient is φ = 461175120.

The previous prime is 695057399. The next prime is 695057431. The reversal of 695057421 is 124750596.

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

It is not a de Polignac number, because 695057421 - 2¹¹ = 695055373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 695057421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695057431) 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, 548386 + ... + 549651.

It is an arithmetic number, because the mean of its divisors is an integer number (116392028).

Almost surely, 2^695057421 is an apocalyptic number.

It is an amenable number.

695057421 is a deficient number, since it is larger than the sum of its proper divisors (236078803).

695057421 is a wasteful number, since it uses less digits than its factorization.

695057421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098251.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 695057421 is about 26363.9416817744. The cubic root of 695057421 is about 885.8092849431.

The spelling of 695057421 in words is "six hundred ninety-five million, fifty-seven thousand, four hundred twenty-one".