71642950 has 12 divisors (see below), whose sum is σ = 133255980. Its totient is φ = 28657160.

The previous prime is 71642941. The next prime is 71642959. The reversal of 71642950 is 5924617.

It is an interprime number because it is at equal distance from previous prime (71642941) and next prime (71642959).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71642959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716380 + ... + 716479.

It is an arithmetic number, because the mean of its divisors is an integer number (11104665).

Almost surely, 2^71642950 is an apocalyptic number.

71642950 is a deficient number, since it is larger than the sum of its proper divisors (61613030).

71642950 is a wasteful number, since it uses less digits than its factorization.

71642950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432871 (or 1432866 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 71642950 is about 8464.2158526351. The cubic root of 71642950 is about 415.3279451637.

The spelling of 71642950 in words is "seventy-one million, six hundred forty-two thousand, nine hundred fifty".