80958965 has 8 divisors (see below), whose sum is σ = 101374848. Its totient is φ = 61951120.

The previous prime is 80958953. The next prime is 80958967. The reversal of 80958965 is 56985908.

80958965 = T₃₂₇₈ + T₃₂₇₉ + ... + T₃₂₉₂.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-80958965 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80958967) 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, 351881 + ... + 352110.

It is an arithmetic number, because the mean of its divisors is an integer number (12671856).

Almost surely, 2^80958965 is an apocalyptic number.

It is an amenable number.

80958965 is a deficient number, since it is larger than the sum of its proper divisors (20415883).

80958965 is a wasteful number, since it uses less digits than its factorization.

80958965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704019.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 80958965 is about 8997.7199889750. The cubic root of 80958965 is about 432.6017936749.

The spelling of 80958965 in words is "eighty million, nine hundred fifty-eight thousand, nine hundred sixty-five".