29678964 has 24 divisors (see below), whose sum is σ = 79144128. Its totient is φ = 8479680.

The previous prime is 29678963. The next prime is 29678981. The reversal of 29678964 is 46987692.

It is a happy number.

It is a super-2 number, since 2×29678964² = 1761681808226592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29678963) 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, 176577 + ... + 176744.

It is an arithmetic number, because the mean of its divisors is an integer number (3297672).

Almost surely, 2^29678964 is an apocalyptic number.

It is an amenable number.

29678964 is an abundant number, since it is smaller than the sum of its proper divisors (49465164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29678964 is a wasteful number, since it uses less digits than its factorization.

29678964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353335 (or 353333 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 29678964 is about 5447.8403060295. The cubic root of 29678964 is about 309.6109027402.

The spelling of 29678964 in words is "twenty-nine million, six hundred seventy-eight thousand, nine hundred sixty-four".