689750974 has 8 divisors (see below), whose sum is σ = 1128683448. Its totient is φ = 313523160.

The previous prime is 689750969. The next prime is 689750981. The reversal of 689750974 is 479057986.

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

It is a super-3 number, since 3×689750974³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15676137 + ... + 15676180.

It is an arithmetic number, because the mean of its divisors is an integer number (141085431).

Almost surely, 2^689750974 is an apocalyptic number.

689750974 is a deficient number, since it is larger than the sum of its proper divisors (438932474).

689750974 is a wasteful number, since it uses less digits than its factorization.

689750974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31352330.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 689750974 is about 26263.1105164640. The cubic root of 689750974 is about 883.5492735468.

The spelling of 689750974 in words is "six hundred eighty-nine million, seven hundred fifty thousand, nine hundred seventy-four".