980078501 has 4 divisors (see below), whose sum is σ = 1031661600. Its totient is φ = 928495404.

The previous prime is 980078471. The next prime is 980078537. The reversal of 980078501 is 105870089.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105870089 = 13 ⋅8143853.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980078501 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 (980078201) 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, 25791521 + ... + 25791558.

It is an arithmetic number, because the mean of its divisors is an integer number (257915400).

Almost surely, 2^980078501 is an apocalyptic number.

It is an amenable number.

980078501 is a deficient number, since it is larger than the sum of its proper divisors (51583099).

980078501 is a wasteful number, since it uses less digits than its factorization.

980078501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51583098.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 980078501 is about 31306.2054711203. The cubic root of 980078501 is about 993.3149094847.

The spelling of 980078501 in words is "nine hundred eighty million, seventy-eight thousand, five hundred one".