29390661 has 8 divisors (see below), whose sum is σ = 43541760. Its totient is φ = 19593756.

The previous prime is 29390657. The next prime is 29390677. The reversal of 29390661 is 16609392.

It is not a de Polignac number, because 29390661 - 2² = 29390657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29390681) 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, 544245 + ... + 544298.

It is an arithmetic number, because the mean of its divisors is an integer number (5442720).

Almost surely, 2^29390661 is an apocalyptic number.

It is an amenable number.

29390661 is a deficient number, since it is larger than the sum of its proper divisors (14151099).

29390661 is a wasteful number, since it uses less digits than its factorization.

29390661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088552 (or 1088546 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 29390661 is about 5421.3154307788. The cubic root of 29390661 is about 308.6051134413.

The spelling of 29390661 in words is "twenty-nine million, three hundred ninety thousand, six hundred sixty-one".