82670401 has 4 divisors (see below), whose sum is σ = 90185904. Its totient is φ = 75154900.

The previous prime is 82670377. The next prime is 82670417. The reversal of 82670401 is 10407628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82670401 - 2⁵ = 82670369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82670401.

It is not an unprimeable number, because it can be changed into a prime (82670431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3757735 + ... + 3757756.

It is an arithmetic number, because the mean of its divisors is an integer number (22546476).

Almost surely, 2^82670401 is an apocalyptic number.

It is an amenable number.

82670401 is a deficient number, since it is larger than the sum of its proper divisors (7515503).

82670401 is a wasteful number, since it uses less digits than its factorization.

82670401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515502.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 82670401 is about 9092.3264899584. The cubic root of 82670401 is about 435.6288978859.

The spelling of 82670401 in words is "eighty-two million, six hundred seventy thousand, four hundred one".