78248061 has 48 divisors (see below), whose sum is σ = 127296000. Its totient is φ = 46085760.

The previous prime is 78248041. The next prime is 78248063. The reversal of 78248061 is 16084287.

It is not a de Polignac number, because 78248061 - 2⁵ = 78248029 is a prime.

It is a super-2 number, since 2×78248061² = 12245518100519442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78248063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153475 + ... + 153983.

It is an arithmetic number, because the mean of its divisors is an integer number (2652000).

Almost surely, 2^78248061 is an apocalyptic number.

It is an amenable number.

78248061 is a deficient number, since it is larger than the sum of its proper divisors (49047939).

78248061 is a wasteful number, since it uses less digits than its factorization.

78248061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 78248061 is about 8845.7934070382. The cubic root of 78248061 is about 427.7183290238.

The spelling of 78248061 in words is "seventy-eight million, two hundred forty-eight thousand, sixty-one".