694658949 has 16 divisors (see below), whose sum is σ = 967454592. Its totient is φ = 442525248.

The previous prime is 694658927. The next prime is 694658957. The reversal of 694658949 is 949856496.

It is not a de Polignac number, because 694658949 - 2¹⁵ = 694626181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 694658892 and 694658901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694658989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72567 + ... + 81579.

It is an arithmetic number, because the mean of its divisors is an integer number (60465912).

Almost surely, 2^694658949 is an apocalyptic number.

694658949 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

694658949 is a deficient number, since it is larger than the sum of its proper divisors (272795643).

694658949 is a wasteful number, since it uses less digits than its factorization.

694658949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156.

The product of its digits is 16796160, while the sum is 60.

The square root of 694658949 is about 26356.3834582820. The cubic root of 694658949 is about 885.6399763075.

The spelling of 694658949 in words is "six hundred ninety-four million, six hundred fifty-eight thousand, nine hundred forty-nine".