697423478 has 8 divisors (see below), whose sum is σ = 1046281968. Its totient is φ = 348662824.

The previous prime is 697423439. The next prime is 697423499. The reversal of 697423478 is 874324796.

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

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, 2801 + ... + 37452.

It is an arithmetic number, because the mean of its divisors is an integer number (130785246).

Almost surely, 2^697423478 is an apocalyptic number.

697423478 is a deficient number, since it is larger than the sum of its proper divisors (348858490).

697423478 is a wasteful number, since it uses less digits than its factorization.

697423478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48918.

The product of its digits is 2032128, while the sum is 50.

The square root of 697423478 is about 26408.7765335693. The cubic root of 697423478 is about 886.8132794725.

The spelling of 697423478 in words is "six hundred ninety-seven million, four hundred twenty-three thousand, four hundred seventy-eight".