76948749 has 24 divisors (see below), whose sum is σ = 118085760. Its totient is φ = 48117888.

The previous prime is 76948747. The next prime is 76948787. The reversal of 76948749 is 94784967.

It is a happy number.

It is not a de Polignac number, because 76948749 - 2¹ = 76948747 is a prime.

It is a super-2 number, since 2×76948749² = 11842219945330002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76948695 and 76948704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76948741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57324 + ... + 58650.

It is an arithmetic number, because the mean of its divisors is an integer number (4920240).

Almost surely, 2^76948749 is an apocalyptic number.

It is an amenable number.

76948749 is a deficient number, since it is larger than the sum of its proper divisors (41137011).

76948749 is a wasteful number, since it uses less digits than its factorization.

76948749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729 (or 1726 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 76948749 is about 8772.0436045428. The cubic root of 76948749 is about 425.3376767315.

The spelling of 76948749 in words is "seventy-six million, nine hundred forty-eight thousand, seven hundred forty-nine".